Synonyms for triangle

Noun

1. triangle, trigon, trilateral, polygon, polygonal shape

usage: a three-sided polygon

2. triangle, shape, form

usage: something approximating the shape of a triangle; "the coastline of Chile and Argentina and Brazil forms two legs of a triangle"

3. triangle, drafting instrument

usage: any of various triangular drafting instruments used to draw straight lines at specified angles

4. triangle, percussion instrument, percussive instrument

usage: a percussion instrument consisting of a metal bar bent in the shape of an open triangle