| Rectangle 1. (n.) A four-sided figure having only right angles; a right-angled parallelogram. 2. (a.) Rectangular. Thesaurus Entries Little Joe, biquadrate, four, four-part diaphony, foursome, quad, quadrangle, quadrature, quadrennium, quadrilateral, quadrille, quadrinomial, quadruplet, quartet, quatern, quaternary, quaternion, quaternity, quatrefoil, square, square dance, squaring, tetrad, tetragon, tetragram, tetragrammaton, tetrahedron, tetralogy, tetraphony, tetrapody |