Quaternity

n.	1.	The number four.
	2.	The union of four in one, as of four persons; - analogous to the theological term trinity.

Noun

1.

quaternity - the cardinal number that is the sum of three and one Synonyms: IV, Little Joe, quadruplet, quartet, quatern, 4, four, quaternion, tetrad, foursome, quaternary

4, digit, figure, four, foursome, IV, Little Joe, quadruplet, quartet, quatern, quaternary, quaternion, tetrad