square

1. square (noun) — sense 1

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

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

2. square (noun) — sense 2

Definition: Something characterized by a square, or nearly square, form.: A cell in a grid.

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

3. square (noun) — sense 3

Definition: Something characterized by a square, or nearly square, form.: A square piece, part, or surface.

Example: a square of glass

4. square (adj) — sense 4

Definition: Shaped like a square (the polygon).

Example: 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, […].

5. square (adj) — sense 5

Definition: Forming a right angle (90°).

Example: a square corner

6. square (adj) — sense 6

Definition: Forming a right angle (90°).: Forming right angles in all planes as intended; not racked or leaning.

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

7. square (adv) — sense 7

Definition: Directly.

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

8. square (verb) — sense 8

Definition: To adjust so as to align with or place at a right angle to something else; in particular

Example: The casting was mounted on a milling machine so that its sides could be squared.

9. square (verb) — sense 9

Definition: To adjust so as to align with or place at a right angle to something else; in particular:: To place at a right angle to the mast or keel.

Example: to square the yards

10. square (verb) — sense 10

Definition: To adjust so as to align with or place at a right angle to something else; in particular:: To rotate the oars so that they are perpendicular to the water.