Tri Meaning in English
word
Definition
"Tri" is a combining form or prefix meaning 'three', often used in words like "triangle" (three angles) or "tricycle" (three wheels). It can also refer informally to a group of three people, especially in music (short for "trio").
Usage & Nuances
Used mainly as a prefix in compound words or, less often, as slang for 'trio' in musical or sports contexts. Not typically used alone in formal writing. Collocates with numbers ('triathlon'), shapes ('triangle'), and vehicles ('tricycle'). Slang use is casual and usually among younger speakers.
Example Sentences
A trilogy is a story told in tri parts.
basic
We call ourselves "The Tri" because there are three of us in the band.
natural
My bike is a tricycle with tri wheels.
basic
A triangle has tri sides and tri angles.
basic
If you want to win the triathlon, you have to swim, bike, and run.
natural
He loves anything with the tri prefix, from tricorders to trilogies.
natural