Latin word root · Number & Measure
tri-: three
tri- is a Latin root meaning “three”. Learn its variants and explore 1 connected words.
Meaning and variants
Meaning: three
Root forms: tri-
Source word: tres — three; 3
Word family and examples
- triangle
a plane figure with three straight sides and three angles
Root connections help with vocabulary recall. They are not a complete etymological history, and a spelling match alone does not prove a relationship.
Explore this root in the app →
Source: Wiktionary. Dictionary text is adapted from Wiktionary under CC BY-SA 4.0. Definitions are selected and reformatted; root links are curated by Word Radicals. Read about sources and limitations.