tri-

See also: Appendix:Variations of "tri"

English

Pronunciation

• IPA^(key): /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-
	Next:	quadri-

Greek number prefix

3	Previous:	di- duo-
	Next:	tessara- tetra-

tri-

1. Three.

   Synonym: ter-

Derived terms

English terms prefixed with tri-

triacanthodid

triacetate

triacetin

triacetone

triacetylated

triacetylene

triacid

triacidic

triacrylate

triactantial

triactinal

triacyl

triacylated

triadduct

triadelphy

trialate

trialdehyde

trialkoxide

trialkyl

triallelic

triallyl

trialuminium

trialumino

triamide

triamine

triamino

amitriptyline

triammonium

triamniotic

triamping

triamped

triangle

triangulation

trianion

trianionic

tri-annual

triannual

triannually

triannulate

triantennary

triantimonide

triantimony

triaperturate

triapsal

triapsidal

triarch

triarchy

triareal

tri-armed

triarmed

triaromatic

triarsane

triars

triarsenic

triarsenide

triarticulate

triaryl

triarylamine

triathlete

triathlon

triatomic

triatrial

triaugmented

triaulic

tri-axial

triaxial

triaxle

triaxon

triaxonal

triaza

triazanaphthalene

triazane

azatricyclo

triazene

triazepine

triazide

triazole

tri-band

triband

tribar

tribarium

tribarred

tribasal

tribasic

tribasilar

tribenzoate

tribimaximal

trikini

trinoculars

tribismuth

triblend

triblock

triboob

tribool

triborate

triborough

triboson

tribracteate

tribridged

tribromide

tribromo

tribromoanisole

tribromoethanol

tributyl

tributyrate

tributyrin

tricaffeoyl

tricalcic

tricalcium

tricamera

tricameral

tricameralism

tricamerate

tricapped

tricaprin

tricaprylin

tricapsular

tricar

tricarbide

tricarbimide

tricarbonate

tricarbonyl

tricarboxamide

tricarballylic acid

tricarboxylate

tricarboxylic

tricarboxylic acid

tricarinate

tricarpellary

tricarpellate

tricast

tricategorical

tricategory

trication

tricaudal

tricaudate

tricellular

tricentenarian

tricentenary

tricentennial

tricentral

tricentric

tricephalic

tricephalous

tricerium

cetyltrimethlyammonium

trichalcogenide

trichiliocosm

trichloramine

trichloride

trichlorinated

trichloro

trichlorobiphenyl

trichloroethene

trichloroethylene

trichlorosilane

trichlorostannate

tricholine

trichord

trichorionic

trichromate

trichromatic

trichromatism

trichrome

trichromic

trichrysobactin

triciliate

tricircular

tricistronic

tricitrate

Tricity

triclinic

clotrimazole

triclustering

tricoastal

tricoated

tricobalt

tricoccous

tricodon

tricoherence

tricolon

tricolor

Tricolor

tricolored

tricolour

tricolpate

tricolporate

tricolporoidate

tricolumnar

tricompartmental

tricompetent

tricomplex

tricomponent

triconnected

triconsonantic

triconsonantal

tricontinental

trichording

tricoordinate

tricoordinated

words with "tri-" prefix

• 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-
• -tri-

Translations

three

• Arabic: ثُلَاثِيّ (ṯulāṯiyy)
• Asturian: tri- (ast)
• Catalan: tri- (ca)
• Finnish: kolmi- (fi), tri- (fi)
• French: tri- (fr)
• Galician: tri- (gl)
• Georgian: ტრი- (ṭri-), სამ- (sam-)
• German: drei-, tri- (de)
• Hebrew: תְּלַת (he) (tlat)
• Hindi: त्रि- (tri-)
• Hungarian: tri- (hu)
• Irish: trí-
• Italian: tri-
• Malay: tri- (ms)
• Manx: tree-
• Occitan: tri-
• Polish: trój- (pl)
• Portuguese: tri- (pt)
• Russian: трёх- (trjox-), тре- (ru) (tre-), три- (ru) (tri-)
• Spanish: tri- (es)
• Swedish: tri- (sv)

Etymology 2

From Sanskrit त्रि- (tri-, “three”).

Prefix

tri-

1. (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-

1. tri-

Derived terms

Danish terms prefixed with tri-

triatlon

References

• “tri-” in Den Danske Ordbog

Dutch

Pronunciation

• Audio:

  (file)

Prefix

tri-

1. tri-

Dutch terms prefixed with tri-

trichloormethaan

trilogie

Finnish

Etymology

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

Pronunciation

• IPA^(key): /ˈtri-/, [ˈt̪ri-]

Prefix

tri-

1. 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-

1. 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^(key): [tʁi(ː)]

• Audio:

  (file)

Prefix

tri-

1. tri- (three)

Derived terms

German terms prefixed with tri-

Trialkyl

Triarsan

Tribromid

Trichlorid

Trifluorid

Triglycerid

Triiodid

Trioxid

Triphosphat

Triselan

trisubstituiert

Trisulfid

Triterpen

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^(key): /tri/, [t̪ri]

Prefix

tri-

1. tri-

Derived terms

Indonesian terms prefixed with tri-

tribahasa

tridarma

tridaya

tritunggal

triwarsa

triwulan

Italian

Pronunciation

• IPA^(key): /tri/
• Hyphenation: tri-

Prefix

tri-

1. tri-

Derived terms

Italian terms prefixed with tri-

triacetato

trialchilico

triammide

triammina

triangolo

triarchia

triarilico

triarticolazione

triassiale

triatleta

triatomico

tribasico

triblastico

tribromuro

tricamere

tricarbossilico

tricefalia

tricefalo

triciclico

triciclo

triclino

tricloroetilene

tricloruro

tricolorato

tricolore

tricontinentalismo

tricorde

tricorno

tricorporeo

tricromia

tricuspidale

tricuspidato

tricuspide

tridattilo

tridermico

tridimensionale

triedrico

triedro

triennale

triennio

trietile

trifase

trifasico

trifenilmetano

trifluoruro

trifogliato

trifoglio

triforcuto

trifora

trifosfato

trigeminale

trigemino

trigliceride

triglifo

trigono

trigramma

triidrato

triioduro

trilaterale

trilatero

trilineare

trilingue

trilite

trilitico

trilobato

trilocale

trilogia

trilustre

trimero

trimetilazione

trimetilene

trimetrico

trimetro

trimillenario

trimorfismo

trimorfo

trimotore

trinitrofenolo

trinitroglicerina

trinitrotoluene

trinomiale

trinomio

triodo

triolo

trioso

triossido

tripala

tripartire

tripartizione

tripeptide

tripetalo

triplano

tripode

tripodia

tripolare

triposto

trireattore

triregno

trirettangolo

trisdrucciolo

trisecare

trisettimanale

trisezionare

trisezione

trisillabico

trisillabo

trisodico

trisolfuro

trisomia

tristearato

triteista

trivalente

trivalenza

trivalve

trivio

triconco

Related terms

• tre

Anagrams

• TIR

Latin

Etymology

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

Pronunciation

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

Prefix

tri-

1. (without adverbial sense) three, tri-

Derived terms

Latin terms prefixed with tri-

triangulatus

triennis

tressis

tribrevis

tricolor

tricorniger

tricornutus

tricurium

tridens

tridentatus

trifariam

trifarius

trifasciatus

trifidus

trifinium

trifurcifer

trigeminus

trilineatus

trilinguis

trilobatus

trilobus

trimaculatus

trimestris

trimodia

tripalis

tripartio

tripartitus

tripertitus

tripes

tripudium

tripetalus

tripunctatus

triremis

trisaeclisenex

trisetus

trispinosus

trisulcus

trigonometria

triunus

trivium

trivius

trivirgatus

trivittatus

Descendants

• English: tri-

Malay

Malay cardinal numbers

<  2	3	4  >
Cardinal : tri-

Etymology

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

Pronunciation

• IPA^(key): /təri/

Prefix

tri- (Jawi spelling تريـ)

1. tri-

Portuguese

Etymology 1

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

Prefix

tri-

1. tri-

Derived terms

Portuguese terms prefixed with tri-

trialquil

triaril

triarquia

triatleta

trêbado

triquíni

tricampeão

tricarbeto

triciclo

tricloreto

tricolor

tridimensional

trifásico

trifluoreto

trilegal

trinitreto

trissulfeto

triteísmo

Etymology 2

Possibly borrowed from French très.

Prefix

tri-

1. (Rio Grande do Sul, colloquial) superior in quality or degree; super-

   ‎tri- + ‎legal (“cool”) → ‎trilegal (“awesome”)

See also

• tri

Spanish

Prefix

tri-

1. tri-

Derived terms

Spanish terms prefixed with tri-

triatleta

tricampeón

triciclo

tricrómico

triate

tridimensional

triestado

trifásico

trifosfato

trillizo

trinacional

triodo

trisecar

trigonometría

trivalente

trivocalismo

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-

1. tri-

Derived terms

Swedish terms prefixed with tri-

arseniktrioxid

triplan

• arseniktrioxid

Anagrams

• rit