triangle
A polygon with three sides and three angles.
Other meanings
A percussion instrument made by forming a metal rod into a triangular shape which is open at one angle. It is suspended from a string and hit with a metal bar to make a resonant sound.
A triangular piece of equipment used for gathering the balls into the formation required by the game being played.
Example sentences
Word history
From Latin "triangulum".
Where this comes from
This definition is adapted from “triangle” on Wiktionary, by its contributors; example sentences are from Tatoeba, credited to their authors above, published under CC BY-SA 4.0. This page is published under the same licence.