square

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

I took refuge in the square form and exhibited a picture which consisted of nothing more than a black square on a white field.

Something characterized by a square, or nearly square, form.

You may not move a piece to a square already occupied by one of your own pieces.

Something characterized by a square, or nearly square, form.

a square of glass

Something characterized by a square, or nearly square, form.

Something characterized by a square, or nearly square, form.

Shaped like a square (the polygon).

The huge square box, parquet-floored and high-ceilinged, had been arranged to display a suite of bedroom furniture designed and made in the halcyon days of the last quarter of the nineteenth century, […].

Forming a right angle (90°).

a square corner

Take care to make the cut completely square to the edges of the wire to give a good butt join for the ends of the wire.

Forming a right angle (90°).

The foundation has to be level and the framing has to be square.

The stacks had to be neat and square or the old guy grumbled and insisted on getting it just so.

Forming a right angle (90°).

Used in the names of units of area formed by multiplying a unit of length by itself.

A floor that measures 4 feet square has an area of 16 square feet.

square mile

Directly.

Staash tipped up the rim of his hat and looked me square in the eyes as the cigarette dangled from his lips.