12 Letter Words Starting with TRI

Browse 54 verified English 12 letter words that start with TRI, including Trigonometry, Triglyceride, Triphosphate, Triumphalism, Trillionaire, Triumphalist and Trimethoprim. Validated against official game lexicons for Scrabble, Wordle, crosswords, and daily writing, explore definitions and letter counts below.

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Starts with TRIA2 words
triangularly
triadelphous
Starts with TRIB2 words
tribesperson
tribological
Starts with TRIC15 words
trichromatic
tricentenary
trichologist
trichiniasis
trichotomous
trichophyton
trichuriasis
tricephalous
trickishness
trichotomize
tricuspidate
trichopteran
tricorporate
trichocystic
trichogynial
Starts with TRID1 words
tridactylous
Starts with TRIE1 words
triethiodide
Starts with TRIF3 words
triflingness
trifurcation
trifoliolate
Starts with TRIG6 words
trigonometry
triglyceride
trigrammatic
triggerplant
trigonometer
triglyphical
Starts with TRIL3 words
trillionaire
trilaterally
trilingually
Starts with TRIM3 words
trimethoprim
trimethylene
trimolecular
Starts with TRIN3 words
trinomialist
trinomialism
trinacriform
Starts with TRIP7 words
triphosphate
triplication
tripartition
tripudiation
tripartitely
triphthongal
tripinnately
Starts with TRIR1 words
triradiately
Starts with TRIS1 words
tristfulness
Starts with TRIT3 words
triterpenoid
trituberculy
triticalness
Starts with TRIU3 words
triumphantly
triumphalism
triumphalist

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Disclaimer: SCRABBLE® is a registered trademark. All intellectual property rights in and to the game are owned in the U.S.A. and Canada by Hasbro Inc., and throughout the rest of the world by J.W. Spear & Sons Limited of Maidenhead, Berkshire, England, a subsidiary of Mattel Inc. Mattel and Spear are not affiliated with Hasbro. Words With Friends® is a registered trademark of Zynga Inc. Wordle® is a registered trademark of The New York Times Company. Other referenced game titles and tournament lexicon codes (including NASPA NWL and WESPA/HarperCollins CSW) are trademarks of their respective owners. Wordmom is an independent reference utility for educational and entertainment purposes and is not affiliated with, sponsored by, or endorsed by Hasbro, Mattel, Spear, Zynga, The New York Times Company, NASPA, WESPA, or HarperCollins Publishers. All game names are referenced strictly under nominative fair use to indicate compatibility.