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tri-
(TRY)three
Latin and Greek both use tri for three. A triangle has three angles; a trio is a group of three.
prefixGreek & Latin
Number & quantityExample words
triangle
a shape with three angles
tricycle
a vehicle with three wheels
tripod
a stand with three feet
trio
a group of three
Common Core alignment
Grades served: 4, 5
- L.4.4bUse common, grade-appropriate Greek and Latin affixes and roots as clues to the meaning of a word (e.g., telegraph, photograph, autograph).
- L.5.4bUse common, grade-appropriate Greek and Latin affixes and roots as clues to the meaning of a word (e.g., photograph, photosynthesis).
Number & quantity. Roots that count, measure, and tell you how many.
Browse all number & quantity roots →L.4.4bL.5.4b