square

Definition

A polygon with four straight sides of equal length and four right angles; an equilateral rectangle; a regular quadrilateral.

Etymology

From Middle English square, sqware, squyre; from Old French esquarre, esquerre, (modern French équerre), from Vulgar Latin *exquadra, from Latin ex- + quadro, from quadrus (compare English quad and quadra). Doublet of squad and squadra. Displaced Old English fēowerecge (fēower nominative + ecg accusative, as in "four-edged").

Example Sentences

• "I took refuge in the square form and exhibited a picture which consisted of nothing more than a black square on a white field."
• "You may not move a piece to a square already occupied by one of your own pieces."
• "a square of glass"