Square

Square or squares may refer to:

Mathematics and science

Square (cipher), a cryptographic block cipher
Square (geometry), a regular quadrilateral with four equal sides and four right angles
Square number, an integer that is the square of another integer
A parallelogram

Square (area), an Imperial unit of floor area and other construction materials
Square, a public meeting place:
- Town square, an open area commonly found in the heart of a traditional town used for community gatherings
- Market square, an open area where market stalls are traditionally set out for trading
- Garden square, an open space with buildings surrounding a garden
Square, a "L" or "T" shaped tool:
- Combination square, a tool with a ruled blade and one or more interchangeable heads
- Machinist square, a metalworking tool used to produce right angles
- Steel square, also called a "framing" or "carpenter's" square, produces right angles
- Try square, a woodworking tool for checking right angles
Square, or quadrature, the process of producing right angles

Square (company), former video game company that merged with Enix to become Square Enix
Square (conglomerate), a Bangladeshi conglomerate of textiles, pharmaceuticals, toiletries, consumer products companies
Square (application), a service and device that allows credit card payments to be accepted through mobile devices

Infantry square, a military tactic used by infantry when threatened by cavalry
Square (astrological aspect), an aspect of 90 degrees
Square (dessert), a dessert bar with the texture of a firm cake but softer than a cookie
Square (sailing), to adjust the position of the yardarms on a square-rigged vessel to a 90 degree angle with the keel
Square (slang), several meanings, such as a person or a cigarette