triangle

Meanings

1. 1
   noun

   A flat shape with three straight sides and three angles.

   The teacher asked us to measure the angles of the triangle.

2. 2
   noun

   A situation involving three people, especially a romantic one.

   The novel centres on a love triangle between three old friends.

3. 3
   noun

   A percussion instrument made of a metal bar bent into a triangle shape.

   She played the triangle in the school orchestra.

PIE word *tréyes From Middle English triangle, from Old French triangle, from Latin triangulum, noun use of adjective triangulus (“three-cornered, having three angles”), from trēs (“three”) + angulus (“corner, angle”), equivalent to tri- + -angle.

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