square
noun
°A polygon with four sides of equal length and four angles of 90 degrees; a regular quadrilateral whose angles are all 90 degrees.
"I took refuge in the square form and exhibited a picture which consisted of nothing more than a black square on a white field.—Kazimir Malevich"
°An L- or T-shaped tool used to place objects or draw lines at right angles.
"There are so many uses for the square, in fact, that a new model will usually come complete with a booklet enumerating its applications. -"
adjective
°Shaped like a square (the polygon).
°At right angles to.
verb
°To adjust so as to align with or place at a right angle to something else.
°To resolve.
synonyms: tetragon, piazza, plaza, hash more» , sharp, pound sign, above board, on the level, on the square, on the up and up, straight, ²