# kilo-
## English
### Etymology

From French, kilo- irregularly derived from Ancient Greek χίλιοι (khílioi, “one thousand”). The etymologically "correct" form would be chili- or chilo-, resulting in forms such as chiliasme (“chiliasm”) or chilopode (“centipede”); but the French, when creating the prefix, had to avoid a possible (standard) pronunciation of chi as /ʃi/, too close to the vulgar verb chier.

### Prefix

SI prefix :
| k | Previous: | hecto- |
| k | Next: | mega- |
kilo-
* In the International System of Units and other metric systems of units, multiplying the unit to which it is attached by 1,000. Symbol: k
* (computing) Multiplying the unit to which it is attached by 2$^{10}$ (1024)

#### Usage notes

* The usage of kilo as a 1024x multiplier in computing is considered obsolete in some groups, but others continue to use it this way. See kibi-.

#### Synonyms

* chilia-

#### Antonyms

* milli-

#### Translations
### Further reading

* “kilo-”, in OneLook Dictionary Search.

### Anagrams

* Ilok, Loki

## Albanian
### Prefix

kilo-
* kilo-

#### Derived terms
### Further reading

* “kilo-”, in FGJSSH: Fjalor i gjuhës së sotme shqipe [Dictionary of the modern Albanian language]‎ (in Albanian), 1980

## Basque
### Prefix

kilo-
* kilo-

#### Derived terms
### Further reading

* “kilogramo”, in Euskaltzaindiaren Hiztegia [Dictionary of the Basque Academy], Euskaltzaindia

## Catalan
### Alternative forms

* quilo-

### Etymology

Borrowed from French kilo-, from Ancient Greek χίλιοι (khílioi, “thousand”).

### Prefix

kilo-
* kilo- (SI prefix expressing 10$^3$ of the base unit)

#### Usage notes

* The letter k is not normally used in Catalan. Instead, Catalan orthography calls for using the qu digraph to represent the /k/ sound before an e or an i. Therefor, when the metric system was introduced into Catalan, the prefix kilo- was originally spelled quilo-. With the advent of k as a standard international abbreviation, usage of kilo- has become not only acceptable, but also more common than the traditional spelling. However, traditionalists still insist upon the use of quilo-.

### Further reading

* “kilo-” in Diccionari de la llengua catalana, segona edició, Institut d’Estudis Catalans.
* “kilo-”, in Gran Diccionari de la Llengua Catalana, Grup Enciclopèdia Catalana, 2025
* “kilo-” in Diccionari normatiu valencià, Acadèmia Valenciana de la Llengua.

## Czech
### Prefix

kilo-
* kilo-

#### Derived terms
### Further reading

* “kilo-”, in Slovník spisovného jazyka českého (in Czech), 1960–1971, 1989
* kilo- in Slovník afixů užívaných v češtině, 2017

## Danish
### Prefix

kilo-
* kilo-

#### Derived terms
### Further reading

* “kilo-” in Den Danske Ordbog

## Dutch
### Etymology

From French kilo-.

### Pronunciation

* Audio:(file)

### Prefix

kilo-
* kilo-

#### Derived terms
### Further reading

* “kilogram” in Van Dale Onlinewoordenboek, Van Dale Lexicografie, 2007.

## Esperanto
### Prefix

kilo-
* kilo-

#### Derived terms
### Further reading

* kilogramo in Fundamento de Esperanto by L. L. Zamenhof, 1905

## Estonian
### Prefix

kilo-
* kilo-

#### Derived terms
### Further reading

* “kilo-”, in [EKSS] Eesti keele seletav sõnaraamat [Descriptive Dictionary of the Estonian Language] (in Estonian) (online version), Tallinn: Eesti Keele Sihtasutus (Estonian Language Foundation), 2009

## Finnish
### Etymology

Internationalism, from French kilo-, ultimately from Ancient Greek χίλιοι (khílioi, “one thousand”).

### Pronunciation

* IPA: /ˈkilo-/, [ˈk̟ilo̞-]

### Prefix

kilo-
* kilo-

#### Derived terms

* kilogramma
* kilojoule
* kilokalori
* kilometri
* kilopondi
* kilotavu
* kilotonni
* kilowatti

### Further reading

* “kilo-”, in Kielitoimiston sanakirja [Dictionary of Contemporary Finnish]‎ (in Finnish) (online dictionary, continuously updated), Kotimaisten kielten keskuksen verkkojulkaisuja 35, Helsinki: Kotimaisten kielten tutkimuskeskus (Institute for the Languages of Finland), 2004–, retrieved 2023-07-01

### Anagrams

* Koli, loki, olki

## French
### Etymology

See English kilo-.

### Pronunciation

* Audio:(file)

### Prefix

kilo-
* kilo-

#### Derived terms
### Further reading

* “kilo-”, in Trésor de la langue française informatisé [Digitized Treasury of the French Language], 2012.

## German
### Prefix

kilo-
* kilo-

#### Derived terms
### Further reading

* “kilo-” in Duden online
* “kilo-” in Digitales Wörterbuch der deutschen Sprache

## Hungarian
### Pronunciation

* IPA: [ˈkilo]
* Hyphenation: ki‧lo

### Prefix

kilo-
* (noun prefix) kilo-
    ‎kilo- + ‎méter (“meter”) → ‎kilométer (“kilometer”)

#### Derived terms
### Further reading

* kilométer in Hungarian–English dictionary at SZTAKI

## Ido
### Prefix

kilo-
* kilo-

#### Derived terms
### Further reading

* kilogram-o in Ido-English Dictionary by L. H. Dyer, 1924

## Ingrian
### Etymology

Borrowed from Russian кило- (kilo-).

### Pronunciation

* (Ala-Laukaa) IPA: /ˈkilo-/, [ˈkiɫo̞-]
* (Soikkola) IPA: /ˈkilo-/, [ˈkiɫo̞-]

### Prefix

kilo-
* kilo-

#### Derived terms
## Italian
### Prefix

kilo-
* (sciences) kilo-
    Synonym: (in more general usage) chilo-

### Further reading

* kilo- in Dizionario Italiano Olivetti, Olivetti Media Communication

## Latvian
### Prefix

kilo-
* kilo-

#### Derived terms
### Further reading

* kilo- at tezaurs.lv

## Lithuanian
### Noun

kilo-
* kilo-

#### Derived terms
### Further reading

* “kilometras”, in Lietuvių kalbos žodynas [Dictionary of the Lithuanian language], lkz.lt, 1941–2025

## Norwegian Bokmål
### Noun

kilo-
* kilo-

#### Derived terms
### Further reading

* “kilo-” in The Bokmål Dictionary.

## Norwegian Nynorsk
### Noun

kilo-
* kilo-

#### Derived terms
### Further reading

* “kilogram” in The Nynorsk Dictionary.

## Polish
### Pronunciation

* IPA: /ki.lɔ/
* Audio:(file)
* Rhymes: -ilɔ
* Syllabification: [please specify syllabification manually]

### Prefix

kilo-
* kilo-

#### Derived terms
### Further reading

* kilo- in Polish dictionaries at PWN

## Portuguese
### Prefix

kilo-
* Alternative spelling of quilo-

## Romanian
### Prefix

kilo-
* kilo-

#### Derived terms
### Further reading

* kilo- in DEX online—Dicționare ale limbii române (Dictionaries of the Romanian language)

## Serbo-Croatian
### Prefix

kilo-
* kilo-

#### Derived terms
### Further reading

* “kilo-”, in Hrvatski jezični portal [Croatian language portal] (in Serbo-Croatian), 2006–2025

## Slovak
### Prefix

kilo-
* kilo-

#### Derived terms
### Further reading

* “kilo-”, in Slovníkový portál Jazykovedného ústavu Ľ. Štúra SAV [Dictionary portal of the Ľ. Štúr Institute of Linguistics, Slovak Academy of Science] (in Slovak), https://slovnik.juls.savba.sk, 2003–2025

## Slovene
### Pronunciation

* IPA: /kíːlɔ/

### Prefix

kȋlo-
* kilo-

#### Further reading

* “kilo-”, in Slovarji Inštituta za slovenski jezik Frana Ramovša ZRC SAZU (in Slovene), 2014–2025

## Spanish
### Prefix

kilo-
* kilo-

#### Derived terms
### Further reading

* “kilo-”, in Diccionario de la lengua española [Dictionary of the Spanish Language] (in Spanish), online version 23.8, Royal Spanish Academy [Spanish: Real Academia Española], 2024 December 10

## Swedish
### Prefix

kilo-
* kilo-

#### Derived terms
### Further reading

* kilo- in Svenska Akademiens ordbok (SAOB)

### Anagrams

* olik

## Turkish
### Prefix

kilo-
* kilo-

#### Derived terms
### Further reading

* “kilogram”, in Turkish dictionaries, Türk Dil Kurumu