Straightedge

adj, noun

Definitions

Adjective
  1. 1
    Alternative form of straight edge. alt-of, alternative
Noun
  1. 1
    A flat, rectangular tool used to draw, cut or check the straightness of straight lines.
  2. 2
    hand tool consisting of a flat rigid rectangular bar (metal or wood) that can be used to draw straight lines (or test their straightness) wordnet

Etymology

Etymology 1

Compound of straight + edge.

Etymology 2

Compound of straight + edge.

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