Definition of triangle

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  • triangle is a valid Scrabble US word with a point value of 9
  • triangle is a valid Scrabble UK word with a point value of 9
  • triangle is a valid Words with friends word with a point value of 12

Definition of triangle

  • a three-sided polygon (noun)

    Synonyms

    1. trigon
    2. trilateral
  • a small northern constellation near Perseus between Andromeda and Aries (noun)

    Synonyms

    1. triangulum
  • any of various triangular drafting instruments used to draw straight lines at specified angles (noun)
  • a percussion instrument consisting of a metal bar bent in the shape of an open triangle (noun)
  • something approximating the shape of a triangle (noun)

    Examples

    1. the coastline of Chile and Argentina and Brazil forms two legs of a triangle

See definition of triangle in Merriam Webster