Shaped like a square (the polygon). / (of box-shaped objects such as buildings or metal frames) Forming right angles in all planes as intended; not racked or leaning.

Directly.

(nautical) To place at a right angle to the mast or keel. / (rowing) To rotate the oars so that they are perpendicular to the water. / (transitive, intransitive) To resolve or reconcile; to suit or fit.

(geometry) A polygon with four sides of equal length and four right angles; an equilateral rectangle; a regular quadrilateral. / A cell in a grid. / A square piece, part, or surface.

(idiomatic) Honest and open. / A discreet, unassuming reference to freemasonry.

(humorous) Used to encourage someone to attend an event.

The condition of being square

Covered with a grid of squares. / (mathematics) Raised to the second power.

simple past tense and past participle of square

(geometry) In the shape of a square; at right angles. / (also figuratively) Firmly and solidly. / (figuratively) In a direct, straightforward and honest manner.