A polygon with four sides of equal length and four right angles; an equilateral rectangle; a regular quadrilateral.
2
Something characterized by a square, or nearly square, form.
3
An L- or T-shaped tool used to place objects or draw lines at right angles.
4
An open space or park, often in the center of a town, not necessarily square in shape, often containing trees, seating and other features pleasing to the eye.