sense_id stringlengths 8 55 | lexeme_id stringlengths 1 48 | headword stringlengths 1 48 | pos stringclasses 10
values | sense_index int32 0 16 | domain stringclasses 162
values | tier stringclasses 7
values | reading_level stringclasses 5
values | register stringclasses 5
values | text stringlengths 3 684 | readability_grade float64 -3.4 43 ⌀ | is_canonical bool 2
classes | qa_flags listlengths 0 3 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
0:noun:0 | 0 | 0 | noun | 0 | everyday_life.quantity_time | tier5 | neutral | plain | a mathematical element that when added to another number yields the same number | null | true | [] |
0:noun:0 | 0 | 0 | noun | 0 | everyday_life.quantity_time | tier5 | grade_1 | plain | Add it to a number. The number stays the same. | 0.52 | false | [] |
0:noun:0 | 0 | 0 | noun | 0 | everyday_life.quantity_time | tier5 | grade_5 | plain | A number that keeps another number the same when you add it. | 4.82 | false | [] |
0:noun:0 | 0 | 0 | noun | 0 | everyday_life.quantity_time | tier5 | grade_10 | plain | A number that leaves any other number unchanged when added to it. | 6.79 | false | [] |
0:noun:0 | 0 | 0 | noun | 0 | everyday_life.quantity_time | tier5 | college | plain | An additive identity is an element that leaves any number unchanged under addition. | 13.08 | false | [] |
0:noun:0 | 0 | 0 | noun | 0 | everyday_life.quantity_time | tier5 | neutral | informal | It’s the number that leaves whatever you add it to just as it was. | 4.2 | false | [] |
0:noun:0 | 0 | 0 | noun | 0 | everyday_life.quantity_time | tier5 | neutral | formal | The number whose addition to any other number preserves that number’s value. | 8.76 | false | [] |
0:noun:0 | 0 | 0 | noun | 0 | everyday_life.quantity_time | tier5 | neutral | technical | The additive identity is the number that maps every number to itself under addition. | 12.63 | false | [] |
0:noun:0 | 0 | 0 | noun | 0 | everyday_life.quantity_time | tier5 | neutral | marketing | The number that lets any other number keep its full value when they’re added. | 5.88 | false | [] |
0:noun:0 | 0 | 0 | noun | 0 | everyday_life.quantity_time | tier5 | grade_5 | informal | Put zero with any number, and you still have that number. | 4.79 | false | [] |
0:noun:0 | 0 | 0 | noun | 0 | everyday_life.quantity_time | tier5 | grade_5 | formal | When zero is added to a number, the number does not change. | 4.82 | false | [] |
0:noun:0 | 0 | 0 | noun | 0 | everyday_life.quantity_time | tier5 | college | informal | Add zero to any number, and its value stays put. | 3.65 | false | [] |
0:noun:0 | 0 | 0 | noun | 0 | everyday_life.quantity_time | tier5 | college | formal | Zero is the additive identity: combining it with any number preserves that number’s value. | 11.78 | false | [] |
0:noun:0 | 0 | 0 | noun | 0 | everyday_life.quantity_time | tier5 | college | technical | Zero is the additive identity for numbers: addition by zero leaves every number invariant. | 14.31 | false | [] |
0:adjective:0 | 0 | 0 | adjective | 0 | mathematics.arithmetic | tier5 | neutral | plain | indicating the absence of any or all units under consideration | null | true | [] |
0:adjective:0 | 0 | 0 | adjective | 0 | mathematics.arithmetic | tier5 | grade_1 | plain | Showing that there are no things being counted. | 2.28 | false | [] |
0:adjective:0 | 0 | 0 | adjective | 0 | mathematics.arithmetic | tier5 | grade_5 | plain | Showing that none of the counted items are present. | 4.96 | false | [] |
0:adjective:0 | 0 | 0 | adjective | 0 | mathematics.arithmetic | tier5 | grade_10 | plain | Indicating that none, or possibly all, of the units being considered are present. | 9.45 | false | [] |
0:adjective:0 | 0 | 0 | adjective | 0 | mathematics.arithmetic | tier5 | college | plain | Indicating the absence of any units under consideration, whether the relevant set is wholly or only partially specified. | 15.69 | false | [] |
0:adjective:0 | 0 | 0 | adjective | 0 | mathematics.arithmetic | tier5 | neutral | informal | Shows that there aren’t any items in the group being counted. | 4.79 | false | [] |
0:adjective:0 | 0 | 0 | adjective | 0 | mathematics.arithmetic | tier5 | neutral | formal | Denotes the absence of units in the quantity or set under consideration. | 10.72 | false | [] |
0:adjective:0 | 0 | 0 | adjective | 0 | mathematics.arithmetic | tier5 | neutral | technical | Represents a cardinality of zero for the units included in the relevant set. | 12.17 | false | [] |
0:adjective:0 | 0 | 0 | adjective | 0 | mathematics.arithmetic | tier5 | neutral | marketing | Makes an empty count instantly clear, showing that the quantity contains no units. | 8.54 | false | [] |
0:adjective:0 | 0 | 0 | adjective | 0 | mathematics.arithmetic | tier5 | grade_5 | informal | A sign that says your group has no things in it. | 0.5 | false | [] |
0:adjective:0 | 0 | 0 | adjective | 0 | mathematics.arithmetic | tier5 | grade_5 | formal | A mark showing that none of the items being counted are present. | 4.82 | false | [] |
0:adjective:0 | 0 | 0 | adjective | 0 | mathematics.arithmetic | tier5 | college | informal | A sign that the count contains no units, whether the set includes every item or only selected ones. | 9.79 | false | [] |
0:adjective:0 | 0 | 0 | adjective | 0 | mathematics.arithmetic | tier5 | college | formal | A symbol denoting the absence of units from the set under consideration, in whole or in part. | 10.48 | false | [] |
0:adjective:0 | 0 | 0 | adjective | 0 | mathematics.arithmetic | tier5 | college | technical | A numeral denoting that the cardinality of the specified set is nil, whether the set comprises all units or only selected units. | 13.91 | false | [] |
1:noun:0 | 1 | 1 | noun | 0 | everyday_life.quantity_time | tier5 | neutral | plain | the smallest whole number or a numeral representing this number | null | true | [] |
1:noun:0 | 1 | 1 | noun | 0 | everyday_life.quantity_time | tier5 | grade_1 | plain | It is the first number we say when counting. We write it with one straight mark. | 0.8 | false | [] |
1:noun:0 | 1 | 1 | noun | 0 | everyday_life.quantity_time | tier5 | grade_5 | plain | This is the first number in a count, shown by one written mark. | 3.1 | false | [] |
1:noun:0 | 1 | 1 | noun | 0 | everyday_life.quantity_time | tier5 | grade_10 | plain | This is the first counting number, represented in writing by the numeral 1. | 8.54 | false | [] |
1:noun:0 | 1 | 1 | noun | 0 | everyday_life.quantity_time | tier5 | college | plain | The first positive integer in the counting sequence, represented by the numeral 1. | 11.26 | false | [] |
1:noun:0 | 1 | 1 | noun | 0 | everyday_life.quantity_time | tier5 | neutral | informal | It’s the number you get when you start counting, and its written mark. | 4 | false | [] |
1:noun:0 | 1 | 1 | noun | 0 | everyday_life.quantity_time | tier5 | neutral | formal | This quantity is the initial member of the whole-number sequence and is denoted by a single numeral. | 11.75 | false | [] |
1:noun:0 | 1 | 1 | noun | 0 | everyday_life.quantity_time | tier5 | neutral | technical | The least positive integer, denoted by the corresponding base-ten digit. | 11.23 | false | [] |
1:noun:0 | 1 | 1 | noun | 0 | everyday_life.quantity_time | tier5 | neutral | marketing | Every count starts here: one clear mark opens the door to the numbers that follow. | 5.99 | false | [] |
1:noun:0 | 1 | 1 | noun | 0 | everyday_life.quantity_time | tier5 | grade_5 | informal | It’s the first amount you count, and the mark you write for it. | 2.19 | false | [] |
1:noun:0 | 1 | 1 | noun | 0 | everyday_life.quantity_time | tier5 | grade_5 | formal | This is the starting number in a count, also written as a single mark. | 5.88 | false | [] |
1:noun:0 | 1 | 1 | noun | 0 | everyday_life.quantity_time | tier5 | college | informal | It names the opening position in a count and the numeral used to record that value. | 7.61 | false | [] |
1:noun:0 | 1 | 1 | noun | 0 | everyday_life.quantity_time | tier5 | college | formal | The unit quantity at the beginning of the positive whole-number sequence, conventionally recorded with a single digit. | 15.03 | false | [] |
1:noun:0 | 1 | 1 | noun | 0 | everyday_life.quantity_time | tier5 | college | technical | The initial positive integer in the counting sequence, also expressed by the base-ten numeral 1. | 11.3 | false | [] |
1:adjective:0 | 1 | 1 | adjective | 0 | everyday_life.quantity_time | tier5 | neutral | plain | used of a single unit or thing; not two or more | null | true | [] |
1:adjective:0 | 1 | 1 | adjective | 0 | everyday_life.quantity_time | tier5 | grade_1 | plain | It means there is just one thing, not more. | -0.28 | false | [] |
1:adjective:0 | 1 | 1 | adjective | 0 | everyday_life.quantity_time | tier5 | grade_5 | plain | It describes one person or thing, rather than a group. | 3.65 | false | [] |
1:adjective:0 | 1 | 1 | adjective | 0 | everyday_life.quantity_time | tier5 | grade_10 | plain | It refers to exactly one person, object, or unit, rather than multiple ones. | 9.45 | false | [] |
1:adjective:0 | 1 | 1 | adjective | 0 | everyday_life.quantity_time | tier5 | college | plain | It denotes a single entity or unit, excluding any quantity greater than one. | 11.26 | false | [] |
1:adjective:0 | 1 | 1 | adjective | 0 | everyday_life.quantity_time | tier5 | neutral | informal | It means there’s only one, not a bunch. | 0.8 | false | [] |
1:adjective:0 | 1 | 1 | adjective | 0 | everyday_life.quantity_time | tier5 | neutral | formal | Applied to a unit or object that occurs singly, rather than in a plurality. | 8.41 | false | [] |
1:adjective:0 | 1 | 1 | adjective | 0 | everyday_life.quantity_time | tier5 | neutral | technical | Specifies cardinality of one for a unit or entity, excluding quantities greater than one. | 11.78 | false | [] |
1:adjective:0 | 1 | 1 | adjective | 0 | everyday_life.quantity_time | tier5 | neutral | marketing | For the one item that stands on its own, not a group. | 1.87 | false | [] |
1:adjective:0 | 1 | 1 | adjective | 0 | everyday_life.quantity_time | tier5 | grade_5 | informal | It means you’re talking about one thing, not a bunch of things. | 2.86 | false | [] |
1:adjective:0 | 1 | 1 | adjective | 0 | everyday_life.quantity_time | tier5 | grade_5 | formal | It describes one thing by itself, not a group. | 2.34 | false | [] |
1:adjective:0 | 1 | 1 | adjective | 0 | everyday_life.quantity_time | tier5 | college | informal | It’s for a lone item or entity, not a collection or multiple instances. | 9.45 | false | [] |
1:adjective:0 | 1 | 1 | adjective | 0 | everyday_life.quantity_time | tier5 | college | formal | Indicates that the referent is singular in number, with no plurality implied. | 10.72 | false | [] |
1:adjective:0 | 1 | 1 | adjective | 0 | everyday_life.quantity_time | tier5 | college | technical | Indicates that the referent has cardinality one, rather than a value greater than one. | 10.1 | false | [] |
10:noun:0 | 10 | 10 | noun | 0 | everyday_life.quantity_time | tier5 | neutral | plain | the cardinal number that is the sum of nine and one; the base of the decimal system | null | true | [] |
10:noun:0 | 10 | 10 | noun | 0 | everyday_life.quantity_time | tier5 | grade_1 | plain | It is one more than nine. People count with it in groups of ten. | -0.22 | false | [] |
10:noun:0 | 10 | 10 | noun | 0 | everyday_life.quantity_time | tier5 | grade_5 | plain | It is one more than nine. It is the base, or starting number, of our usual counting system. | 3 | false | [] |
10:noun:0 | 10 | 10 | noun | 0 | everyday_life.quantity_time | tier5 | grade_10 | plain | It is the number that comes after nine and forms the foundation of the decimal system. | 7.61 | false | [] |
10:noun:0 | 10 | 10 | noun | 0 | everyday_life.quantity_time | tier5 | college | plain | The natural number obtained by adding one to nine and serving as the radix of the decimal numeral system. | 11.07 | false | [] |
10:noun:0 | 10 | 10 | noun | 0 | everyday_life.quantity_time | tier5 | neutral | informal | It’s what you get by adding nine and one, and the count that gives our ten-based notation its shape. | 5.78 | false | [] |
10:noun:0 | 10 | 10 | noun | 0 | everyday_life.quantity_time | tier5 | neutral | formal | The quantity formed by combining nine with one, and the foundation on which decimal notation is based. | 9.78 | false | [] |
10:noun:0 | 10 | 10 | noun | 0 | everyday_life.quantity_time | tier5 | neutral | technical | The natural number immediately following nine, equal to their sum with one, and the radix of base-ten numeration. | 12.31 | false | [] |
10:noun:0 | 10 | 10 | noun | 0 | everyday_life.quantity_time | tier5 | neutral | marketing | The number that completes the first full count and unlocks the familiar rhythm of counting in tens. | 7 | false | [] |
10:noun:0 | 10 | 10 | noun | 0 | everyday_life.quantity_time | tier5 | grade_5 | informal | Add nine and one, and you get it. Our usual counting system groups numbers by it. | 2.28 | false | [] |
10:noun:0 | 10 | 10 | noun | 0 | everyday_life.quantity_time | tier5 | grade_5 | formal | This number follows nine in the counting sequence. Decimal notation organizes quantities in groups based on it. | 7.85 | false | [] |
10:noun:0 | 10 | 10 | noun | 0 | everyday_life.quantity_time | tier5 | college | informal | It’s the total of nine plus one, and the radix that makes place-value notation decimal. | 6.88 | false | [] |
10:noun:0 | 10 | 10 | noun | 0 | everyday_life.quantity_time | tier5 | college | formal | The integer succeeding nine, equal to their sum with one, and the radix governing decimal place-value notation. | 11.1 | false | [] |
10:noun:0 | 10 | 10 | noun | 0 | everyday_life.quantity_time | tier5 | college | technical | The natural number represented by the decimal numeral 10, equal to 9 + 1 and serving as the radix of decimal notation. | 13.95 | false | [] |
10:adjective:0 | 10 | 10 | adjective | 0 | mathematics.arithmetic | tier5 | neutral | plain | being one more than nine | null | true | [] |
10:adjective:0 | 10 | 10 | adjective | 0 | mathematics.arithmetic | tier5 | grade_1 | plain | The number you get when you count past nine. | 1.03 | false | [] |
10:adjective:0 | 10 | 10 | adjective | 0 | mathematics.arithmetic | tier5 | grade_5 | plain | The number that comes after nine when you count. | 2.34 | false | [] |
10:adjective:0 | 10 | 10 | adjective | 0 | mathematics.arithmetic | tier5 | grade_10 | plain | The whole number that follows nine in the counting sequence. | 6.01 | false | [] |
10:adjective:0 | 10 | 10 | adjective | 0 | mathematics.arithmetic | tier5 | college | plain | The natural number succeeding nine in the standard counting sequence. | 9.55 | false | [] |
10:adjective:0 | 10 | 10 | adjective | 0 | mathematics.arithmetic | tier5 | neutral | informal | The number you say right after nine when counting. | 3.65 | false | [] |
10:adjective:0 | 10 | 10 | adjective | 0 | mathematics.arithmetic | tier5 | neutral | formal | The cardinal number immediately succeeding nine. | 16.25 | false | [] |
10:adjective:0 | 10 | 10 | adjective | 0 | mathematics.arithmetic | tier5 | neutral | technical | The integer whose value is the successor of nine. | 4.96 | false | [] |
10:adjective:0 | 10 | 10 | adjective | 0 | mathematics.arithmetic | tier5 | neutral | marketing | The next step up from nine in the count. | -0.28 | false | [] |
10:adjective:0 | 10 | 10 | adjective | 0 | mathematics.arithmetic | tier5 | grade_5 | informal | It's the number you get by adding one to nine. | 2.47 | false | [] |
10:adjective:0 | 10 | 10 | adjective | 0 | mathematics.arithmetic | tier5 | grade_5 | formal | The number equal to the sum of nine and one. | 2.47 | false | [] |
10:adjective:0 | 10 | 10 | adjective | 0 | mathematics.arithmetic | tier5 | college | informal | It’s nine with one more added, the next whole number in the count. | 4 | false | [] |
10:adjective:0 | 10 | 10 | adjective | 0 | mathematics.arithmetic | tier5 | college | formal | The cardinal number immediately greater than nine in the natural-number sequence. | 12.69 | false | [] |
10:adjective:0 | 10 | 10 | adjective | 0 | mathematics.arithmetic | tier5 | college | technical | The integer obtained by adding unity to nine, and the successor of nine in the ordered natural numbers. | 11.1 | false | [] |
100:noun:0 | 100 | 100 | noun | 0 | everyday_life.quantity_time | tier5 | neutral | plain | ten 10s | null | true | [] |
100:noun:0 | 100 | 100 | noun | 0 | everyday_life.quantity_time | tier5 | grade_1 | plain | It means ten groups of ten. | -1.45 | false | [] |
100:noun:0 | 100 | 100 | noun | 0 | everyday_life.quantity_time | tier5 | grade_5 | plain | It means ten groups with ten things in each group. | 0.11 | false | [] |
100:noun:0 | 100 | 100 | noun | 0 | everyday_life.quantity_time | tier5 | grade_10 | plain | This number represents ten groups of ten, for a total of one hundred. | 4.91 | false | [] |
100:noun:0 | 100 | 100 | noun | 0 | everyday_life.quantity_time | tier5 | college | plain | The cardinal number equal to the product of ten and ten, and to one hundred. | 5.99 | false | [] |
100:noun:0 | 100 | 100 | noun | 0 | everyday_life.quantity_time | tier5 | neutral | informal | That's ten sets of ten, making a hundred altogether. | 4.96 | false | [] |
100:noun:0 | 100 | 100 | noun | 0 | everyday_life.quantity_time | tier5 | neutral | formal | The quantity obtained from ten groups of ten is one hundred. | 3.72 | false | [] |
100:noun:0 | 100 | 100 | noun | 0 | everyday_life.quantity_time | tier5 | neutral | technical | The natural number produced by multiplying ten by ten, equivalent to one hundred. | 9.45 | false | [] |
100:noun:0 | 100 | 100 | noun | 0 | everyday_life.quantity_time | tier5 | neutral | marketing | A full hundred: ten neat groups, each holding ten. | 1.03 | false | [] |
100:noun:0 | 100 | 100 | noun | 0 | everyday_life.quantity_time | tier5 | grade_5 | informal | Ten rows with ten objects apiece make this number. | 3.65 | false | [] |
100:noun:0 | 100 | 100 | noun | 0 | everyday_life.quantity_time | tier5 | grade_5 | formal | A count of ten, repeated across ten equal groups, gives this total. | 5.81 | false | [] |
100:noun:0 | 100 | 100 | noun | 0 | everyday_life.quantity_time | tier5 | college | informal | It’s the number you get by multiplying ten by itself. | 4.83 | false | [] |
100:noun:0 | 100 | 100 | noun | 0 | everyday_life.quantity_time | tier5 | college | formal | The integer produced by multiplying ten by ten, denoting a quantity of one hundred. | 9.26 | false | [] |
100:noun:0 | 100 | 100 | noun | 0 | everyday_life.quantity_time | tier5 | college | technical | In base ten, 100 denotes the cardinal quantity obtained by summing ten groups of ten units. | 8.35 | false | [] |
100:adjective:0 | 100 | 100 | adjective | 0 | mathematics.arithmetic | tier5 | neutral | plain | being ten more than ninety | null | true | [] |
100:adjective:0 | 100 | 100 | adjective | 0 | mathematics.arithmetic | tier5 | grade_1 | plain | The number you get when you add ten to ninety. | 3.65 | false | [] |
OpenGloss v2.4 — Definitions
The flat definition view: one row for every stored rendition of every live sense's definition, the canonical (neutral, plain) gloss included. This is the reading-level and register grading of OpenGloss v2.4 laid out one row at a time, which is the shape most training and analysis code wants. Join back to opengloss-v2.4-senses on sense_id.
Part of the OpenGloss v2.4 release family — 16 datasets built from one store of 160,724 lexemes and 300,787 live senses, all joinable on derived ids. See Related datasets for the rest.
What's new in v2.4 vs v1.3
- Schema v3. Every lexeme carries a
kinddiscriminator (simplex, compound, phrasal verb, idiom, proper noun, abbreviation, affix, function word); every sense carries a controlled domain leaf from a fixed ~160-leaf taxonomy instead of free text; every example carries the character span of the headword occurrence inside it. - Renditions, not one string. A definition is a set: the canonical one plus rewrites at four reading levels and in four registers, each produced in a single call from the canonical text so they say the same thing at different altitudes.
- A sense graph, not a word graph. Typed relations resolve to sense ids wherever
the target's entry exists in the release, so
bank --hypernym--> financial institutionpoints at a meaning rather than at a string. - Retrieval data is first-class. Synthetic per-sense queries in eight styles, grounded QA pairs, mined word-in-context pairs, MS MARCO-style triples with graph-derived hard negatives, and graded TREC qrels — all derivable from, and consistent with, the same entries.
- Derivable identifiers everywhere. v1.3 published a positional id for lexemes and
senses (
3d_model_noun_0) and nothing below that. v2.4 gives every rendition, edge, query, QA pair and provenance record an id computable from the row alone, and never renumbers: a retired sense is tombstoned, so the ids after it keep their meaning. - Per-field provenance. Which model wrote a field, how many tokens it took, what it cost — published as its own dataset.
What changed since v2.3
v2.3 (2026-09-09) added tier 6, named entities. v2.4 adds no new headwords: it fills in the supervision the lower tiers never received and makes every reading level of the pretraining corpus carry text of its own.
- Retrieval supervision for every sense. Tiers 3-6 (about two thirds of all senses) had no search queries, QA pairs, register variants or contrast paragraphs in v2.3; those existed only for core and tier 2. Every live sense now has search queries in eight styles (twelve per sense; 85% of all queries never name the headword), 99.7% have grounded QA pairs, and every tier has register variants, register-crossed examples and contrasts.
- Verified word-in-context examples everywhere. The sense-disambiguated example stage (eight checked sentences per sense) ran only on tier 2 in v2.3; it now covers core and tiers 3-6 as well.
- Leveled register text. Every sense gains five definitions crossing reading level and register (grade 5 informal and formal; college informal, formal and technical); every contrast paragraph gains a grade-5 and a college version; every lexical explanation gains a grade-5 and a college version.
- A pretraining corpus with no copies. v2.3's thesaurus and usage-note documents at
grade_5andcollegewere byte-identical toneutral(25% of all pretraining documents). A non-neutral document is now emitted only when it carries text written at its level and differs from the neutral one, and the export fails if any two documents share text. The thesaurus template gains a "Choosing between them" section of leveled contrast notes (moved from the usage note), and the usage note lists the register variants written at the document's level. - Graph repair. Relations were regenerated for senses that had none (senses without a relation fell from 4,722 to about 1,600), re-resolved, re-judged, and hypernym cycles broken back to zero.
- Writer. New v2.4 text was written by
gpt-6-luna(low reasoning); v2.3's bygpt-5.6-luna. Theprovenancerepo records the model of every call.
| v2.3 (2026-09-09) | v2.4 | |
|---|---|---|
| Lexemes | 160,724 | 160,724 |
| Live senses | 300,787 | 300,787 |
| Search queries | 1,249,683 | 3,851,978 |
| QA pairs | 704,950 | 2,304,127 |
| Definition renditions | 1,919,007 | 4,209,494 |
| Example renditions | 2,421,809 | 4,939,887 |
| Encyclopedia renditions | 500,320 | 802,914 |
| Lexical-explanation renditions | 160,724 | 482,172 |
| Contrast paragraphs (all levels) | 81,046 | 812,184 |
| Unique source-text tokens (16K student tokenizer) | 697,553,973 | 1,461,832,309 |
| Pretraining documents | 1,560,030 | 1,910,373 |
| Pretraining words | 418,161,358 | 483,649,976 |
| Pretraining tokens (cl100k_base) | 594,154,612 | 676,733,509 |
| Exact-duplicate pretraining documents | 25.0% | 0 (the export fails on any duplicate) |
| Judge score, Opus, 40-entry samples | 70.2 (core + tier 2), 66.7 (tier 3), 67.0 (tier 4), 81.3 (tier 5), 73.0 (tier 6) | 64.8 (core), 69.9 (tier 2), 65.8 (tier 3), 68.1 (tier 4), 79.6 (tier 5), 71.3 (tier 6) |
Schema. No column was removed or retyped. pretrain gains sections_at_level;
level_used gains the value mixed (some leveled sections fell back to neutral text);
non-neutral pretraining documents with no text of their own at their level are no longer
emitted, and retired lexemes (no live sense) emit no pretraining document. contrasts
now carries grade_5 and college rows beside neutral.
Known issues. Leveled informal definitions open with "It's a / It's the / It's when" about 18% of the time. About 1.1% of QA answers are exact duplicates of another QA answer (mostly short answers). Listwise qrels lists that contain all four grades fell as a share, because tier 3-6 senses joined with fewer grade-2 neighbours.
What changed since v2.2
v2.2 (2026-09-07) added tier 5, the WordNet 3.0 gap. v2.3 adds tier 6: named entities. Every tier before it was selected by word frequency or by WordNet membership, and neither signal ranks a name — a name's importance is a fact about the world, not about a corpus — so v2.2 knew Washington and Lincoln but not George Washington, New York City or World War II. Tier 6 is 15,000 candidates ranked by Wikipedia vital-article level, Wikidata sitelink count, WordNet instance membership and US salience, of which 12,078 became entries. Three schema changes come with it:
- Entity types are written rather than defaulted. Every proper noun in v2.2 carried
entity_type = other, because the two migrations and the kind classifier all wrote that placeholder and nothing ever replaced it. 28,915 proper nouns now carry a real type —person,place,organization,work,event,product,species— taken from the candidate list where it knew one and bought as a single batched verdict where it did not.lexiconandsensesgain anentity_typecolumn, andlexicongainswikidata_qid, the join key for reconciling an entry against Wikidata. - Aliases. A name has variants — Lincoln for Abraham Lincoln, the Netherlands
for Netherlands, FDR, NASA — and v2.2 had nowhere to put them. A variant that
has an entry of its own is now an
alias_ofedge inopengloss-v2.4-relations(1,267 of them, written by a judged alias pass). The schema also reserves alexicon.aliasescolumn andaliasrows inopengloss-v2.4-inflectionsfor variants with no entry of their own, but no pass populates them yet:aliasesis empty on every v2.4 row. Analias_ofedge is never demoted, pruned, capped or re-judged by the hygiene passes, unlike every other relation type. - Two new domain leaves.
nature.settlements(cities, towns, villages, neighbourhoods) andlaw_government.polities(countries, states, provinces, empires, historical polities). A quarter of tier 6 is a settlement or a polity and the taxonomy had no leaf for either; adding ageographyroot would have been a breaking change to a fixed 15-root vocabulary, so both went under roots that already exist.
| v2.2 (2026-09-07) | v2.3 | |
|---|---|---|
| Lexemes | 148,292 | 160,724 |
| Live senses | 288,304 | 300,787 |
| Tier 6 lexemes (named entities) | 0 | 12,078 |
| Pretraining documents | 1,458,684 | 1,560,030 |
| Pretraining words | 398,029,628 | 418,161,358 |
| Pretraining tokens (cl100k_base) | 565,384,746 | 594,154,612 |
| Judge score, Opus, 40-entry samples | 70.2 (core + tier 2), 66.7 (tier 3), 67.0 (tier 4), 81.3 (tier 5) | 70.2 (core + tier 2), 66.7 (tier 3), 67.0 (tier 4), 81.3 (tier 5), 73.0 (tier 6) |
Schema. No column was removed or retyped. lexicon gains entity_type,
wikidata_qid and aliases; senses gains entity_type; relations gains the
alias_of type; inflections gains the alias relation; tier gains the value
tier6; and the domain taxonomy gains two leaves (taxonomy version 3).
What changed since v2.1
v2.1 (2026-09-07) added tier 4 and the inflections repo. v2.2 adds tier 5:
43,652 WordNet 3.0 candidate lemmas the earlier tiers lacked — common
compounds and technical nouns, adjectives, adverbs and verbs, instances/taxa/organisms
excluded — 38,526 of them imported outright, the rest matched against
v1.3's own files. The other three changes are about honesty rather than coverage:
- The lemma fold.
lexeme-hygiene(D-79) folded 4,377 inflected-form headwords onto the lemma that already carried their meaning ("databases" onto "database", through the store's own recorded morphology) and retired 172 multiword fragments that began or ended on a function word ("is not", "on top of"). Together with D-76's phantom part-of-speech retirements, 4,549 lexemes store-wide now have every sense tombstoned. A lexeme like that is not counted as a lexeme anywhere in this card or inStatsany more — it has no live sense, so it is not a lexeme by this release's own count — but it is not gone: its surface form still resolves throughopengloss-v2.2-inflections, and itslexiconrow carriesretired = truewith aretired_reasonexplaining why. - Provenance on inherited fields. Every field a migration or import wrote, not only
what a model wrote from scratch, now carries a
migrate-stage provenance record naming where it came from, so "where did this text come from" is answerable bygreprather than by trusting the pipeline that happened to run. - A
sourcecolumn onlexiconandsenses:opengloss-v1.3for content this project generated or migrated from its own legacy releases,wordnet-3.0for the tier-5 entries imported directly from Princeton WordNet 3.0.
| v2.1 (2026-09-07) | v2.2 | |
|---|---|---|
| Lexemes | 109,633 | 160,724 |
| Live senses | 250,003 | 300,787 |
| Tier 5 lexemes (WordNet gap) | 0 | 43,227 |
| Retired lexemes (every sense tombstoned) | 0 | 4,567 |
| Pretraining documents | 1,111,044 | 1,458,684 |
| Pretraining words | 331,888,239 | 398,029,628 |
| Pretraining tokens (cl100k_base) | 471,451,693 | 565,384,746 |
| Judge score, Opus, 40-entry samples | 70.2 (core + tier 2), 66.7 (tier 3), 67.0 (tier 4) | 70.2 (core + tier 2), 66.7 (tier 3), 67.0 (tier 4), 81.3 (tier 5) |
Schema. No column was removed or retyped. lexicon gains source, retired and
retired_reason; senses gains source; tier gains the value tier5.
What changed since v2.0
v2.0 (2026-09-05) covered the frequency-ranked single words. v2.4 adds tier 4: the function words the core ranking had excluded on purpose, and every remaining v1.3 entry at Wikipedia frequency ≥ 10 — mostly multiword compounds ("natural selection", "catalog number"), plus names and rarer single words. That doubles the lexeme count and changes the mix: v2.0 was 99.8% single words; a third of v2.4 is multiword.
| v2.0 (2026-09-05) | v2.1 (2026-09-07) | |
|---|---|---|
| Lexemes | 54,724 | 109,633 |
| Live senses | 137,314 | 250,003 |
| Multiword entries (compounds, phrasal verbs, idioms) | 86 | 36,366 |
| Proper nouns | 10,365 | 17,073 |
| Function words | 114 | 462 |
| Gloss renditions | 1,129,975 | 1,684,865 |
| Example sentences | 1,398,297 | 2,163,329 |
| Live relations | 735,318 | 1,574,438 |
| Synthetic queries | 1,330,311 | 1,304,650 |
| QA pairs | 750,348 | 736,010 |
| Pretraining documents | 617,175 | 1,111,044 |
| Pretraining words | 196,390,946 | 331,888,239 |
| Pretraining tokens (cl100k_base) | 275,659,096 | 471,451,693 |
| Judge score, Opus, 40-entry samples | 70.2 (core + tier 2), 66.7 (tier 3) | 70.2 (core + tier 2), 66.7 (tier 3), 67.0 (tier 4) |
Schema. No column was added, removed or retyped in any existing dataset. Three things did change:
tiergains the valuetier4(it wascore,tier2ortier3).- One new dataset,
opengloss-v2.4-inflections: a flat surface-form → lemma lookup (plural, past tense, participles, comparative, superlative, derivations) built from the morphology that the lexicon already carried nested. - New provenance note prefixes on tombstones and edges, all reversible and all counted
in the store audit:
phantom_pos:(a v1.3 part-of-speech block whose glosses defined a component word rather than the compound — 11,440 blocks retired),regen:(relations regenerated for senses that had lost every edge to judging), andretyped: contrast(synonym edges the contrast paragraphs showed to be hypernym or hyponym).
Not row-compatible with v2.0. Lexeme, sense, rendition, edge, query and QA ids are
stable for every entry v2.0 had. The derived training sets (retrieval-pairs,
retrieval-triples, qrels) re-sample negatives over the larger pool, so their rows
differ; and the store-wide quality passes run for v2.4 retired ~3,000 senses of the v2.0
entries (phantom part-of-speech blocks and near-duplicate senses), so those senses are
now tombstoned rather than live. Treat v2.4 as a new release, not a delta.
Scope: fewer headwords, far more per headword
v2.4 is not a superset of v1.3. It covers 160,724 of v1.3's 205,988 lexemes — every frequency-ranked single word, plus the compounds and names at Wikipedia frequency ≥ 10 — and spends the difference on depth. If you need breadth of vocabulary, use v1.3; if you need graded renditions, resolved relations, spans, or retrieval supervision, use v2.4.
| v1.3 | v2.4 | |
|---|---|---|
| Lexemes | 205,988 | 160,724 |
| Senses | 565,604 | 300,787 |
| Definition renditions per sense | 1 canonical | 1 canonical + up to 8 graded |
| Relation targets | bare strings | resolved to sense ids |
| Retrieval training data | companion sets | queries, QA, triples, qrels |
| Per-field provenance | no | model, tokens and cost per call |
Key statistics
| Lexemes | 160,724 |
| Retired lexemes (every sense tombstoned; not counted above) | 4,567 |
| Live senses | 300,787 |
| Rows in this dataset | 4,209,494 |
| Renditions per sense (mean) | 14.0 |
| Distinct reading levels | 5 |
| Distinct registers | 5 |
By tier
core— top 10K by composite frequencytier2— ranks to ~42Ktier3— the rest of the frequency-ranked single wordstier4— stopwords, plus compounds and names at Wikipedia frequency ≥ 10tier5— the WordNet 3.0 lemmas the earlier tiers lacked: common compounds and technical nouns, adjectives, adverbs and verbs (instances, taxa and organisms excluded); 5,126 from v1.3 files, the rest imported from WordNettier6— named entities — people, places, organizations, works and events ranked by Wikipedia vital-article level, Wikidata sitelinks, WordNet instance membership and US salience, which no frequency list ranks
| Tier | Lexemes | Live senses |
|---|---|---|
core |
9,427 | 32,193 |
tier2 |
30,346 | 71,957 |
tier3 |
11,452 | 23,511 |
tier4 |
53,841 | 113,873 |
tier5 |
43,227 | 46,755 |
tier6 |
12,078 | 12,145 |
unknown |
353 | 353 |
Coverage by tier
The release was built in 6 frequency-ranked passes (core, tier2, tier3, tier4, tier5 and tier6) and they did not all receive the same stages. This table is per-field and per-tier so the gaps are visible rather
than averaged away.
| Field | Of | core |
tier2 |
tier3 |
tier4 |
tier5 |
tier6 |
unknown |
|---|---|---|---|---|---|---|---|---|
| Canonical gloss | sense | 100.0% | 100.0% | 100.0% | 100.0% | 100.0% | 100.0% | 100.0% |
| Controlled domain tag | sense | 100.0% | 100.0% | 100.0% | 100.0% | 100.0% | 100.0% | 100.0% |
| Gloss at 4 reading levels | sense | 100.0% | 99.9% | 99.9% | 100.0% | 99.9% | 100.0% | 0.0% |
| Gloss in 4 registers | sense | 100.0% | 100.0% | 100.0% | 100.0% | 100.0% | 100.0% | 100.0% |
| At least one example | sense | 100.0% | 99.9% | 100.0% | 99.6% | 100.0% | 100.0% | 100.0% |
| Examples at 4 reading levels | sense | 99.6% | 99.6% | 99.9% | 98.4% | 99.9% | 100.0% | 60.6% |
| At least one relation | sense | 99.4% | 99.4% | 99.4% | 99.5% | 99.3% | 99.9% | 100.0% |
| Synthetic retrieval queries | sense | 100.0% | 100.0% | 100.0% | 100.0% | 100.0% | 100.0% | 100.0% |
| Grounded QA pairs | sense | 99.9% | 99.7% | 99.3% | 99.6% | 99.9% | 100.0% | 100.0% |
| Etymology | lexeme | 100.0% | 100.0% | 99.8% | 100.0% | 100.0% | 100.0% | 100.0% |
| Lexical explanation | lexeme | 100.0% | 100.0% | 100.0% | 100.0% | 100.0% | 100.0% | 100.0% |
| Encyclopedia (neutral) | lexeme | 100.0% | 100.0% | 100.0% | 100.0% | 100.0% | 100.0% | 100.0% |
| Encyclopedia at grade 5 + college (core entries also carry grade 1 and grade 10) | lexeme | 100.0% | 100.0% | 100.0% | 100.0% | 100.0% | 100.0% | 0.0% |
| Contrast paragraphs | lexeme | 85.2% | 68.7% | 58.1% | 61.9% | 38.8% | 7.4% | 9.6% |
Reading levels
| Level | Rows |
|---|---|
neutral |
1,503,935 |
college |
1,202,759 |
grade_5 |
902,008 |
grade_1 |
300,434 |
grade_10 |
300,358 |
Registers
| Register | Rows |
|---|---|
plain |
1,502,411 |
formal |
902,361 |
informal |
902,361 |
technical |
601,574 |
marketing |
300,787 |
Files
| Files | Config | Rows | Shards | Size |
|---|---|---|---|---|
data/train-*.parquet |
default | 4,209,494 | 9 | 158.5 MB |
Fields
4,209,494 rows, one row per gloss rendition.
| Field | Type | Description |
|---|---|---|
sense_id |
string |
Sense id: {lexeme_id}:{pos}:{index}. Join key. |
lexeme_id |
string |
Owning entry id: slugify(headword). Join key. |
headword |
string |
The owning entry's surface headword. |
pos |
string |
Part of speech of the owning POS entry (noun, verb, …). |
sense_index |
int32 |
Zero-based position of the sense within its POS entry. |
domain |
string |
Controlled domain leaf, root.leaf (nullable). |
tier |
string |
core (top 10K by composite frequency), tier2 (ranks to ~42K), tier3 (the rest of the frequency-ranked single words), tier4 (stopwords, plus compounds and names at Wikipedia frequency ≥ 10), tier5 (the WordNet 3.0 gap the earlier tiers lacked), tier6 (named entities — people, places, organizations, works and events, ranked by importance rather than by frequency) or unknown (on none of the rank lists); an export may contain only some of these — see the coverage table. |
reading_level |
string |
neutral, grade_1, grade_5, grade_10 or college. |
register |
string |
plain, informal, formal, technical or marketing. |
text |
string |
The definition at this (reading level, register). |
readability_grade |
double |
Measured Flesch-Kincaid grade of text, when the pipeline recorded one. |
is_canonical |
bool |
True for the one (neutral, plain) rendition, which is the sense's canonical gloss. |
qa_flags |
list<string> |
MQM-grounded quality flags recorded on this rendition, if any. |
One real row:
{
"sense_id": "0:noun:0",
"lexeme_id": "0",
"headword": "0",
"pos": "noun",
"sense_index": 0,
"domain": "everyday_life.quantity_time",
"tier": "tier5",
"reading_level": "neutral",
"register": "plain",
"text": "a mathematical element that when added to another number yields the same number",
"readability_grade": null,
"is_canonical": true,
"qa_flags": []
}
Loading it
from datasets import load_dataset
ds = load_dataset("mjbommar/opengloss-v2.4-definitions", split="train")
print(ds)
print(ds[0])
The shards are plain parquet, so nothing forces you through datasets — read them
straight, locally or over hf://:
import polars as pl
df = pl.read_parquet("hf://datasets/mjbommar/opengloss-v2.4-definitions/data/train-*.parquet")
print(df.head())
import duckdb
duckdb.sql("SELECT count(*) FROM 'hf://datasets/mjbommar/opengloss-v2.4-definitions/data/train-*.parquet'").show()
A parallel corpus of one definition at four reading levels
import duckdb
rows = duckdb.sql('''
SELECT sense_id, reading_level, text
FROM 'data/train-*.parquet'
WHERE register = 'plain'
ORDER BY sense_id, reading_level
''').df()
print(rows.head(10))
Identifiers, and how they compose
Every id is derived from structure, never randomly minted, so a consumer can recompute one from a row and join across the whole family without a lookup table. Sense positions are stable across regenerations: a retired sense is tombstoned, not removed, so the indices after it never shift.
| Id | Shape | Example |
|---|---|---|
| Lexeme | slugify(headword) |
abseil |
| Sense | {lexeme_id}:{pos}:{index} (zero-based) |
abseil:verb:0 |
| Rendition | {owner_id}#{reading_level}/{register} |
abseil:verb:0#grade_5/plain |
| Entry-level owner | {lexeme_id}:encyclopedia / :explanation |
abseil:encyclopedia |
| Edge | {source_sense_id}-{type}->{target_lexeme_id} |
abseil:verb:0-synonym->rappel |
| Query | {sense_id}#q{n} (zero-based) |
abseil:verb:0#q3 |
| QA pair | {sense_id}#qa{n} (zero-based) |
abseil:verb:0#qa3 |
| Provenance record | p{n} within its entry (one-based) |
p12 |
An edge id keys on the target's slug, not on the target's sense, so resolving a target never changes the id of the edge that found it.
Reading levels and registers
A rendition is keyed on a (reading_level, register) pair. The canonical rendition of
every field is (neutral, plain); everything else is a rewrite of it.
reading_level |
Who it is written for | Rough CCSS band |
|---|---|---|
neutral |
The canonical text: an adult general reader, no level targeted | — |
grade_1 |
Beginning readers; short sentences, common words | K–1 |
grade_5 |
Upper elementary | 4–5 |
grade_10 |
Secondary | 9–10 |
college |
Undergraduate and above; technical vocabulary allowed | 11–CCR |
register |
What changes | Reading it |
|---|---|---|
plain |
Nothing — the neutral register | The default |
informal |
Conversational, contractions, everyday words | How you'd say it to a friend |
formal |
Full forms, precise hedging, no contractions | How you'd write it in a report |
technical |
Domain vocabulary, exact conditions | How a specialist would state it |
marketing |
Benefit-first, persuasive framing | A genre, not a formality level |
marketing sits on the register axis for convenience but is a genre value rather than
a point on the formality scale — worth remembering if you train a formality classifier on
this column.
Related datasets
Everything below is built from the same store and joins on lexeme_id / sense_id.
| Dataset | Grain | What it holds |
|---|---|---|
opengloss-v2.4-lexicon |
one row per lexeme | One row per lexeme: kind, morphology, etymology, encyclopedia, contrasts, sense ids, provenance summary. |
opengloss-v2.4-senses |
one row per live sense | One row per live sense: canonical gloss, 8 gloss renditions, examples, resolved relations, synthetic queries, grounded QA pairs. |
opengloss-v2.4-definitions (this one) |
one row per gloss rendition | One row per gloss rendition (canonical included): reading level, register, text, readability grade. |
opengloss-v2.4-examples |
one row per example rendition | One row per example sentence with the headword's character span, its reading level and register. |
opengloss-v2.4-encyclopedia |
one row per encyclopedia rendition · one row per lexical-explanation rendition | One row per encyclopedia article rendition, plus an explanation config for the "why this word" prose. |
opengloss-v2.4-etymology |
one row per entry with an etymology | One row per entry with an etymology: prose summary, ordered language trail, cognates, references. |
opengloss-v2.4-inflections |
one row per inflected, derived or lemma form | One row per inflected or derived form, plus the lemma itself: a flat form→lemma lookup. |
opengloss-v2.4-relations |
one row per live relation edge · one row per removed relation edge | One row per semantic edge, resolved to target sense ids; a tombstoned config recovers the edges the reconcile pass removed. |
opengloss-v2.4-queries |
one row per synthetic query | One row per synthetic retrieval query, across eight query styles, tagged to the sense it should retrieve. |
opengloss-v2.4-qa-pairs |
one row per question/answer pair | One row per grounded question/answer pair, with the rendition ids the answer cites. |
opengloss-v2.4-contrasts |
one row per contrast paragraph | One row per "X vs Y" paragraph on a synonym/antonym/confusable edge, with a verdict on the edge. |
opengloss-v2.4-provenance |
one row per provenance record | One row per recorded generation call: stage, model, tokens, cost, run id — the audit trail. |
opengloss-v2.4-retrieval-pairs |
one row per mined pair | Word-in-context and doc2query-shaped (text_a, text_b, label) pairs mined from the store for free. |
opengloss-v2.4-retrieval-triples |
one row per (query, positive, negative) triple | MS MARCO-style (query, positive, negative) triples whose hard negatives come from the graph. |
opengloss-v2.4-qrels |
one row per query, with its whole graded candidate list · one row per document in the retrieval corpus | Graded TREC relevance judgements (0–3) plus the document corpus and listwise candidate lists. |
opengloss-v2.4-pretrain |
one row per rendered document | Entries serialised into plain-prose dictionary, thesaurus, encyclopedia and usage-note documents. |
Known limitations
- It is synthetic. Every string here was written by a language model against a schema, not transcribed from a corpus or checked by a lexicographer. It is well-formed and internally consistent; it is not attested usage, and it will contain confident errors. Do not use it as ground truth about what a word means.
- Judge scores 70.2/100 (core + tier 2) and 66.7/100 (tier 3). A different model family (Claude Opus) scored fixed 40-entry stratified samples at the close of each build. Sample statistics, not per-entry guarantees, and the judge is itself a model.
- Relation precision is the weakest axis. Relations were judged for validity and the ones that failed were demoted rather than asserted; symmetric reciprocity finished at 94.2% for synonyms and 94.3% for antonyms, and 4,722 senses were left with no relation at all. Treat a single edge as a hypothesis, not a fact; treat the aggregate graph as usable.
core,tier2,tier3,tier4,tier5andtier6are deliberately partial. 160,371 lexemes acrosscore,tier2,tier3,tier4,tier5andtier6received the text stages (glosses, examples, encyclopedia) but not the queries, QA pairs, contrasts or register renditions. The coverage table above gives the exact per-field share; nothing is hidden behind an average.- The encyclopedia is entry-level. One article per headword, about the headword as a whole. On a polysemous entry it is not a description of any one sense, and it is never used as a positive for one (D-71). It is entry-level reference prose, not a specialist article.
Sources and licences
This release is Creative Commons Attribution 4.0 International (CC-BY 4.0). Of 160,724 lexemes in this release, 40,643 (the tier-5 entries whose source column reads wordnet-3.0) are derived from Princeton WordNet 3.0: their glosses, examples, relations and derivationally related forms, plus WordNet's own capitalisation of the headword (D-78).
The WordNet License permits use, copying, modification and distribution without fee, provided its notice is preserved:
The WordNet License notice is quoted in full on the opengloss-v2.4-lexicon and opengloss-v2.4-senses cards; this repo's WordNet-derived rows are governed by the same terms.
Citation
@misc{bommarito2025opengloss,
title = {OpenGloss: A Synthetic Encyclopedic Dictionary and Semantic Knowledge Graph},
author = {Bommarito, Michael J., II},
year = {2025},
eprint = {2511.18622},
archivePrefix = {arXiv},
url = {https://arxiv.org/abs/2511.18622}
}
Tier-5 entries additionally derive from Princeton WordNet 3.0 (D-78):
@article{miller1995wordnet,
title = {WordNet: A Lexical Database for English},
author = {Miller, George A.},
journal = {Communications of the ACM},
volume = {38},
number = {11},
pages = {39--41},
year = {1995}
}
@book{fellbaum1998wordnet,
title = {WordNet: An Electronic Lexical Database},
editor = {Fellbaum, Christiane},
publisher = {MIT Press},
year = {1998}
}
License
Released under Creative Commons Attribution 4.0 International (CC-BY 4.0). Attribution to the OpenGloss project is required; commercial use is permitted. See Sources and licences above for the Princeton WordNet License that additionally covers this release's tier-5 entries.
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