Countable Nouns Starting with TRIA and Containing O

Explore 11 verified English countable nouns starting with TRIA and containing O, including Triathlon, Triangulation, Trialogue, Triazole, Triaxon, Triaconter and Triakisoctahedron. Browse these count nouns with singular and plural forms below, or review singular and plural count rules in our noun grammar guide.

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Starts with TRIAC
2 words
triaconter
triactor
Starts with TRIAK4 words
triakisoctahedron
triakistetrahedron
triakisicosahedron
triakisoctahedrid
Starts with TRIAL
1 words
trialogue
Starts with TRIAN
1 words
triangulation
Starts with TRIAT
1 words
triathlon
Starts with TRIAX
1 words
triaxon
Starts with TRIAZ
1 words
triazole

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