(nautical) A sail bent to a horizontal yard set athwartships.

(genetics) A graphical representation used to determine the probability of an offspring expressing a particular genotype.

plural of Punnett square

(geometry) A three-dimensional geometric figure with a square base and four triangular sides that connect at one point. An example is the Great Pyramid of Giza.

plural of square pyramid

(idiomatic) Totally fairly and undoubtedly. / (idiomatic) Within the applicable rules. / (idiomatic) In all fairness; equitably.

A large plaza in Dongcheng district, Beijing, China. / A protest event held in the square on June 4, 1989.

(finance) A type of CDO (collateralized debt obligation) that invests in other CDOs.

(UK) A flat triangular piece of plastic or other material, having corners of precise angles, used in technical drawing

plural of square foot