# tri-
## English
### Pronunciation

* IPA: /tɹaɪ/
* Audio (US):(file)

### Etymology 1

* PIE word
* *tréyes
From Latin tri- (“three”) and Ancient Greek τρι- (tri-, “three”).

#### Prefix

Latin number prefix :
| 3 | Previous: | bi- |
| 3 | Next: | quadri- |
Greek number prefix :
| 3 | Previous: | di- duo- |
| 3 | Next: | tessara- tetra- |
tri-
* three

##### Synonyms

* ter-

##### Derived terms

* triad
* triadic
* triage
* triangle
* triangular
* triangulate
* triannual
* triathlete
* triathlon
* tribune
* tricentennial
* triceps
* trichord
* triclavianism
* triclavianist
* tricycle
* trident
* triennial
* trifoliate
* trigamy
* trigon
* trigonal
* trigonometry
* trihedron
* trike
* trilateral
* tri-lead
* trilemma
* triliteral
* trilobite
* trimaran
* trimester
* trimillennial
* trinitarian
* trinitrotoluene
* trinity
* trinomial
* trio
* triode
* triomino
* tripartite
* triplet
* tripod
* tripoint
* triptych
* trireme
* trisect
* trisection
* triterpene
* triterpenoid
* tritium
* triumvirate
* trivia

##### Related terms

* tre-
* ter-
* -tri-

##### Translations
### Etymology 2

From Sanskrit त्रि- (tri-, “three”).

#### Prefix

tri-
* (chemistry) Used in combination with a known element name (e.g. 'tri-silicon') to designate an unknown element that would reside three periods lower than the known element on a Mendeleev-type periodic table. See Mendeleev's predicted elements.

##### Related terms

* eka-
* dvi-

### See also

* Thesaurus:number

### Anagrams

* IRT, RTI, TIR, Tir, rit

## Danish
### Etymology

From Latin tri- (“three”) and Ancient Greek τρι- (tri-, “three”).

### Prefix

tri-
* tri-

#### Derived terms
### References

* “tri-” in Den Danske Ordbog

## Dutch
### Pronunciation

* Audio:(file)

### Prefix

tri-
* tri-

## Finnish
### Etymology

Internationalism (see English tri-), ultimately from Latin tri-.

### Pronunciation

* IPA: /ˈtri-/, [ˈt̪ri-]

### Prefix

tri-
* tri-

#### Usage notes

The prefix tri- is mainly used in the names of chemical compounds, e.g. trikloorifluorimetaani or in words that have been loaned from other languages with the tri- prefix already there, e.g. trigonometria, trikolori. For other words, the prefix kolmi-, which is derived from the Finnish word kolme (“three”) is preferred.

#### Derived terms

* triadi
* triangeli
* triedri
* trieeri
* triennaali
* triforio
* triftongi
* triglyfi
* trigoninen
* trigonometria
* trikarboksyylihappo
* trikloorietyleeni
* trikolori
* triljoona
* trilobiitti
* trilogia
* trimetri
* trimorfinen
* trimorfismi
* trinitaarinen
* trinitrofenoli
* trinomi
* triodi
* trioksidi
* trioli
* trioosi
* triplata
* tripleksilasi
* tripletti
* trippeliallianssi
* triptyykki
* trireemi
* tritium
* triumviraatti
* triumviri
* triviaali
* trivium

## French
### Prefix

tri-
* tri-

#### Related terms

* triangle
* trias
* triathlon
* tricentenaire
* tricéphale
* tricolore
* tridimensionnel
* trièdre
* triennal
* trilogie
* trimestre
* trimoteur
* trinité
* triparti
* triple
* trisannuel
* trisomie

### See also

* trois

## German
### Etymology

Ultimately from Latin tri- and Ancient Greek τρι- (tri-, “three”).

### Pronunciation

* IPA: [tʁi(ː)]
* Audio:(file)

### Prefix

tri-
* tri- (three)

#### Derived terms
### Further reading

* “tri-” in Digitales Wörterbuch der deutschen Sprache

## Indonesian
### Etymology

From Malay tri-, from tri, from Sanskrit त्रि (tri), from Proto-Indo-Iranian, from Proto-Indo-European *tréyes.

### Pronunciation

* IPA: /tri/, [t̪ri]

### Prefix

tri-
* tri-

#### Derived terms
## Italian
### Pronunciation

* IPA: /tri/
* Hyphenation: tri-

### Prefix

tri-
* tri-

#### Related terms

* tre

### Anagrams

* TIR

## Latin
### Etymology

Combining form of trēs (“three”, cardinal numeral).

### Pronunciation

* (Classical Latin) IPA: /ˈtri/, [ˈt̪rɪ]
* (modern Italianate Ecclesiastical) IPA: /ˈtri/, [ˈt̪riː]

### Prefix

tri-
* (without adverbial sense) three, tri-

#### Descendants

* English: tri-

## Malay
### Etymology

From tri, from Sanskrit त्रि (tri), from Proto-Indo-Iranian, from Proto-Indo-European *tréyes.

### Pronunciation

* IPA: /təri/

### Prefix

tri- (Jawi spelling تريـ)
* tri-

## Portuguese
### Etymology 1

Internationalism (see English tri-), ultimately from Latin tri-.

#### Prefix

tri-
* tri-

##### Derived terms
### Etymology 2

Possibly borrowed from French très.

#### Prefix

tri-
* (Rio Grande do Sul, colloquial) superior in quality or degree; super-
    ‎tri- + ‎legal (“cool”) → ‎trilegal (“awesome”)

##### See also

* tri

## Spanish
### Prefix

tri-
* tri-

#### Derived terms
### Further reading

* “tri-”, 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

tri-
* tri-

#### Derived terms

* arseniktrioxid

### Anagrams

* rit