| Quaternity 1. (n.) The number four. 2. (n.) The union of four in one, as of four persons; -- analogous to the theological term trinity. Thesaurus Entries Little Joe, biquadrate, bout, contest, decathlon, double-header, doubles, event, four, four-part diaphony, game, games of chance, go, match, meet, pentathlon, play, play-off, quad, quadrangle, quadrature, quadrennium, quadrilateral, quadrille, quadrinomial, quadruplet, quartet, quatern, quaternary, quaternion, quaternity, quatrefoil, race, rectangle, runoff, singles, sport, square, square dance, squaring, tetrad, tetragon, tetragram, tetragrammaton, tetrahedron, tetralogy, tetraphony, tetrapody, threesome, twosome |