This morpheme tends to mean "three". Some of the most representative words that include it are: tricycle, triangle, triune
See the full list below:
- trial
- trip
- triumph
- tribunal
- trick
- tribute
- trivial
- trigger
- triangle
- trinity
- trim
- trio
- tribe
- tribal
- triple
- tricky
- triumphant
- triangular
- trickle
- tribune
- trident
- trifle
- triumphantly
- tripartite
- tripoli
- tripod
- trillion
- trilogy
- tributary
- triumphal
- triad
- tripos
- trite
- tritium
- triton
- trickery
- triglyceride
- triplet
- trier
- triathlon
- tripe
- trigram
- trilby
- triforium
- triticale
- triptych
- trippy
- triplicate
- trickster
- trie
- triumvirate
- triennial
- trill
- trilobite
- tricycle
- trist
- triangulation
- tricyclic
- trice
- trig
- tristar
- tricolour
- triable
- triviality
- trimester
- triazolam
- trifolium
- triceps
- triplane
- trigonometry
- tribalism
- triphosphate
- triumphalism
- triumphalist
- trigger-happy
- trilateral
- trisomy
- trinitarian
- triadic
- trivialise
- trinket
- triage
- trivially
- tritiated
- tringa
- trickle-down
- tricot
- tri
- tribesman
- tribulation
- tricolor
- trifid
- trialist
- trike
- trigeminal
- tribble
- tritone
- trichologist
- trichomonal
- trichomonas
- trine
- triplex
- trivialization
- trivialize
- tricameral
- triceratops
- triteness
- tripper
- trioxide
- trinitro
- triply
- trisodium
- trialling
- trimethoprim
- tribology
- triste
- trivet
- tricksy
- tricuspid
- trigonometrical
- triune
- triiodothyronine
- trivialisation
- triggerfish
- trilingual
- trivium
- trituration
- tribeswoman
- trillo
- trimly
- trichloroethylene
- trimaran
- trionic
- trireme
- trisphosphate
- tricorn
- tricorne
- trigonometric
- tribally
- trichloroacetic
- trihedron
- tritely
- triapsidal
- trimphone
- triploblastic
- trisyllabic
- trichomoniasis
- trichotomy
- triploid
- trifoliate
- triatomic
- tribade
- triphthong
- trillium
- triode
- triolet
- tricoloured
- tridacnid
- triffic
- trimotor
- tritocerebrum
- trikini
- triallist
- trinitarianism
- triangulate
- triathlete
- trilobal
- tribromoethanol
- tributyl
- tricarboxylic
- tricep
- trichlorethylene
- trichloroethane
- trichlorophenol
- trimeter
- trinucleotide
- trichrome
- trivalent
- tricksiness
- triclinic
- tridiagonal
- triethanolamine
- trigon
- tri-
- tri-axial
- trishaw
- triunity
- triamine
- triangled
- triangularity
- triaxial
- triazophos
- tribadism
- tribalist
- tribalistic
- trilaminar
- trinuclear
- trijet
- tripeptide
- triboluminescent
- trisaccharide
- trippily
- triumphally
- tributer
- tricast
- trichology
- trimer
- trimethylamine
- trinitrate
- trinitrobenzene
- trinketry
- triphasic
- triose
- tripwire
- tristesse
- triumphalistic
- trickily
- trickly
- tricksily
- tricontinental
- tridacna
- triduum
- triennially
- trifluralin
- trigonid
- trigoniid
- tripedal
- tri-level
- trinkle
- triturated
- trimeric
- tripart
- triplicity
- trimmable
- tripletail
- trisomic
- tripolyphosphate
- triphenyl
- triumpher
- triarch
- triaryl
- triazine
- triazole
- tribalize
- tribological
- tripartisan
- triboluminescence
- triplication
- tripang
- triquetrous
- triptyque
- tripolar
- trisilicate
- trivariate
- tritocerebral
- tritheism
- trillingly
- tribunician
- tributyltin
- tricalcium
- tricarboxylate
- trilingually
- trichinella
- trichinopoly
- trichinosis
- trichloro
- trichloromethane
- trichogen
- trilbied
- trichopteran
- trihydrate
- trimolecular
- trimethylsilyl
- trinitrin
- trimethylammonium
- trinitrotoluene
- trichothecene
- trimethylaminuria
- triphibian
- triplike
- triphosphatase
- tripple
- trisyllable
- triradial
- triploidy
- triterpenoid
- trick-or-treat
- tricker
- triclinium
- triclopyr
- tricolon
- tridactyl
- triene
- trifluoroacetic
- triform
- trigamy
- triggerman
- tri-band
- tri-camera photography
- tri-D
- tri-quarter
- tri-rocker
- tri-tip
- tri-unity
- TRIAC
- triac
- triacanthid
- triacanthodid
- triacetin
- triacetone
- triacetone triperoxide
- triacetoxyborohydride
- triacetylated
- triacetylene
- triacetyloleandomycin
- triacid
- triacontahedron
- triacontane
- triacontanol
- triaconter
- triacsin C
- triactinomyxon
- triacyclglycerol
- triacyl
- triacylated
- triacylglycerol
- triadduct
- triadelphous
- triadelphy
- triadically
- triadimefon
- triadimenol
- triadism
- triadist
- triaenonychid
- triafulvene
- triafungin
- triakid
- triakisoctahedron
- trial by media
- trial by ordeal
- trial de novo
- trial number
- trial run
- trialate
- trialism
- triality
- trialkyl
- trialkylphosphine
- trialkyltin
- triallate
- triallelic
- trialler
- trialless
- triallyl
- trialog
- trialogue
- trials and tribulations
- triamantane
- triamcinolone
- triamide
- triamiphos
- triamond
- triamped
- triamping
- triamterene
- triandrian
- Triangle
- triangle inequality
- triangle pose
- triangle spider
- triangle test
- triangle wave
- triangle-free
- trianglist
- triangulable
- triangulane
- triangular colon
- triangular division
- triangular harp
- triangular hebesphenorotunda
- triangular number
- triangular prism
- triangular pyramid
- triangularine
- triangularis muscle
- Triangulum Galaxy
- triannual
- Trianon
- triantennary
- triaose
- triaperturate
- triapsal
- triarchy
- triarius
- triarsane
- triarsine
- triarticulate
- triarylamine
- triarylphosphine
- Triassic
- triatic
- triatic stay
- triatoma
- triatome
- triatomine
- triatrial
- triaugmented
- triaulic
- triaxiality
- triaxially
- triaxle
- triaza
- triazabicyclo
- triazanaphthalene
- triazane
- triazbutil
- triazene
- triazepine
- triazide
- triazidotrinitrobenzene
- triazinane
- triaziquone
- triazo
- triazolate
- triazolide
- triazoline
- triazolinone
- triazolium
- triazolo
- triazologuanine
- triazolone
- triazolopyrazine
- triazolopyridine
- triazolyl
- triazoxide
- trib
- tribadic
- tribadist
- tribady
- tribal chief
- tribalesque
- tribality
- tribalization
- triband
- tribar
- tribasic
- tribber
- Tribbett
- tribbing
- Tribble
- TriBeCa
- Tribeca
- Tribecan
- tribeless
- tribelet
- tribelike
- tribemate
- tribendilol
- tribendimidine
- tribenoside
- tribesperson
- tribikos
- tribimaximal
- Tribisonde
- triblet
- triblock
- tribo-
- tribochemical
- tribrid modeller
- tribridged
- tribromhydrin
- tribromide
- tribromo
- tribromometacresol
- tribromomethane
- tribromomethyl
- tribromophenol
- tribromphenol
- tribual
- tribular
- tribulate
- Tribulation
- tribulosaponin
- tribulosin
- tribunary
- tribuneship
- Tribunite
- tribunitial
- tribunitian
- tribunitious
- tributarily
- tributariness
- tributary load
- tributaryless
- tribute band
- tributor
- tributyl phosphate
- tributylamine
- tributylphosphate
- tributylphosphine
- tributyrate
- tributyrin
- tribuzone
- trica
- tricaine
- tricalcic
- tricam
- tricamera
- tricameralism
- tricapped
- tricaprin
- tricaprylin
- tricapsular
- tricar
- tricarballylate
- tricarballylic acid
- tricarbimide
- tricarbon dioxide
- tricarbonyl
- tricarboxamide
- tricarboxylic acid
- tricarboxylic acid cycle
- Tricarico
- tricarpellate
- tricarpous
- tricategory
- trication
- tricaudate
- Trice
- tricellular
- tricellulin
- tricenarian
- tricenary
- tricennial
- tricentenary
- tricentennial
- tricentric
- tricephalous
- triceps brachii
- triceps surae
- tricerion
- tricesimation
- trich
- trichalcogenide
- Triche
- trichechid
- trichechine
- trichiasis
- trichilemmal
- trichilemmoma
- trichiliocosm
- trichina
- trichinelliasis
- trichinellid
- trichinellosis
- trichiniasis
- trichinize
- trichinophobia
- trichinoscope
- trichinosed
- trichinotic
- trichinous
- trichion
- trichite
- trichiurid
- trichiuriform
- trichiuroid
- trichlamide
- trichlor
- trichloramine
- trichlorfon
- trichlorhydrin
- trichloride
- trichlorinated
- trichlormethiazide
- trichlormethine
- trichloroacetaldehyde
- trichloroacetate
- trichloroacetic acid
- trichloroacetonitrile
- trichloroanisole
- trichlorobenzene
- trichlorobiphenyl
- trichloroethene
- trichlorofluoromethane
- trichloromethiazide
- trichloromethyl
- trichloromonofluoromethane
- trichloronitromethane
- trichlorophenylmethyliodosalicyl
- trichlorosilane
- trichlorostannate
- trichlorphon
- tricho-
- trichobezoar
- trichoblast
- trichobothrial
- trichobothrium
- trichobranchia
- trichocerid
- trichochrome
- trichocomaceous
- trichocyst
- trichocyte
- trichodactylid
- trichodermin
- trichodiscoma
- trichodontid
- trichodynia
- trichodysplasia
- trichoepithelioma
- trichofolliculoma
- trichogenous
- trichogrammatid
- trichogyne
- trichogynic
- trichohyalin
- trichoid
- tricholemmoma
- tricholomataceous
- tricholomatoid
- trichoma
- trichomania
- trichomaniac
- trichomatose
- trichome
- trichomegaly
- trichomic
- trichomics
- trichomonacidal
- trichomonacide
- trichomonad
- trichomonosis
- Trichomycetes
- trichomycosis
- trichomycterid
- trichoniscid
- trichonodosis
- trichonotid
- trichopathophobia
- trichophagia
- trichophile
- trichophilia
- trichophobia
- trichophore
- trichophyte
- trichophytic
- Trickett
- Trickey
- trizonal
- trickishly
- trickishness
- trickle down
- trickle truth
- trickle-up trend
- trickledown
- trickler
- tricklet
- tricklingly
- tricklining
- trickment
- tricknology
- trickshot
- tricksome
- tricksterish
- tricksterism
- tricktrack
- tricky slave
- triclabendazole
- triclad
- triclavianism
- triclavianist
- triclazate
- triclinate
- tricliniary
- triclocarban
- triclofos
- triclonide
- triclosan
- tricoastal
- tricoccous
- tricoherence
- Tricolor
- tricolored
- tricolorous
- Tricolour
- tricolourous
- tricolpate
- tricolpates
- tricomplex
- tricomplex number
- tricomplexity
- tricomponent
- triconnected
- triconodont
- triconodontid
- triconsonantal
- triconsonantic
- tricoordinate
- tricoordinated
- tricopter
- tricorder
- tricordia
- tricorner
- tricornered
- tricorporal
- tricorporate
- tricortical
- tricosane
- tricosanoic
- tricosanoic acid
- tricostate
- tricotée
- tricoteuse
- tricounty
- tricresol
- tricresyl phosphate
- tricriterion
- tricritical
- tricriticality
- tricrotic
- tricrotism
- tricrotous
- tricrystal
- trictenotomid
- tricube
- triculate
- tricultural
- triculturalism
- triculture
- tricurvate
- tricuspid valve
- tricuspidate
- tricyanide
- tricyanomethane
- tricyclazole
- tricyclene
- tricycler
- tricyclist
- tricyclo
- tricyclohexylammonium
- tricyclon
- tricylinder
- tricylindrical
- tridactyle
- tridactylid
- tridactylous
- tridactyly
- tridaily
- tridarn
- triddler
- tride
- tridecagon
- tridecagonal
- tridecamer
- tridecameric
- tridecane
- tridecanoic
- tridecanoic acid
- tridecapeptide
- tridecaphobia
- tridecasyllabic
- tridecennary
- tridecyl
- tridecylic
- tridegree
- tridemorph
- tridenchthoniid
- tridendriform
- trident bat
- tridental
- tridentate
- tridentated
- tridented
- Tridentine
- tridentlike
- trideoxynucleotide
- tridermic
- trideuterium
- tridiagonalization
- tridiapason
- tridigitate
- tridihexethyl
- tridimensional
- tridimensionality
- tridimensionally
- tridiminished
- triding
- tridirectional
- tridirectionally
- tridoped
- tridoping
- triduanly
- tridymite
- Triebel-Lizorkin space
- triecious
- tried and tested
- tried and true
- tried and trusted
- triedral
- trielectronic
- triennium
- trienoic
- triens
- trientine
- triepoxide
- Trier
- trier of fact
- trierarch
- trierarchy
- Triers
- Trieste
- triester
- Triestine
- Triestino
- trieteric
- trieterical
- triethyl
- triethylaluminium
- triethylaluminum
- triethylamine
- triethylammonium
- triethylborane
- triethylboron
- triethylene
- triethylenediamine
- triethylenemelamine
- triethylenetetramine
- triethylgallium
- triethylsilane
- Trieu
- triexciton
- triexponential
- triexponentially
- trifacial
- trifactor
- trifactorial
- trifallow
- trifarious
- trifasciated
- trifecta
- trifezolac
- triff
- triffid
- trifistulary
- triflagellated
- triflate
- triflation
- triflavin
- trifle with
- trifler
- triflic
- triflic acid
- triflimide
- triflingly
- triflingness
- triflocin
- trifloral
- triflorous
- trifloxystrobin
- triflubazam
- trifluctuation
- triflumidate
- triflumizole
- triflumuron
- trifluomeprazine
- trifluoperazine
- trifluoracetate
- trifluoracetic
- trifluoramine
- trifluoride
- trifluoro
- trifluoroacetamide
- trifluoroacetate
- trifluoroacetic acid
- trifluoroacetoxy
- trifluoroacetoxylation
- trifluoroborate
- trifluoroethane
- trifluoroethanol
- trifluoroethylamine
- trifluoromethane
- trifluoromethanesulfonate
- trifluoromethanesulfonic
- trifluoromethanesulfonic acid
- trifluoromethanesulfonyl azide
- trifluoromethoxy
- trifluoromethyl
- trifluoromethylaniline
- trifluoromethylate
- trifluoromethylated
- trifluoromethylation
- trifluoromethylative
- trifluoromethylbenzoate
- trifluoromethylphenyl
- trifluoromethylphenylpiperazine
- trifluperidol
- triflupromazine
- trifluridine
- triflusal
- Trifluvian
- Trifluvien
- Trifluvienne
- triflyl
- triflyl azide
- trifocal
- trifocals
- trifold
- trifoliated
- trifolin
- trifoliolate
- trifolirhizin
- trifolitoxin
- trifoly
- triforce
- triforine
- triformed
- triformity
- trifrequency
- trifunctional
- trifunctionality
- trifunctionally
- trifuran
- trifurcate
- trifurcation
- trig point
- TRIGA
- triga
- trigamist
- trigamma function
- trigamous
- trigastric
- trigate
- trigatron
- trigeminal nerve
- trigeminal neuralgia
- trigeminally
- trigeminocerebellar
- trigeminocervical
- trigeminous
- trigeminovascular
- trigeminus
- trigeminy
- trigender
- trigeneration
- trigenerational
- trigenerative
- trigeneric
- trigenic
- trigenic acid
- Triger process
- trigesimal
- trigesimo-secundo
- trigevolol
- Trigg
- trigger finger
- trigger guard
- trigger happy
- trigger man
- trigger warning
- trigger-happiness
- triggerable
- triggerer
- triggerless
- triggerlike
- triggernometry
- triggerwoman
- triggery
- trigintal
- trigintennial
- Triglav
- triglid
- triglossia
- triglossic
- triglot
- trigluon
- triglyceridaemia
- triglyceridemia
- triglyceridemic
- triglycine
- triglyme
- triglyph
- triglyphic
- triglyphical
- trigness
- Trigo
- trigofoenoside
- trigold
- trigonal
- trigonalid
- trigonally
- trigone
- trigonelline
- trigonelloside
- trigoneoside
- trigoniaceous
- trigonite
- trigonitis
- trigonocephalic
Note: these words have been obtained from Wiktionary and have been classified and improved through automated computer linguistics processes.