Synonyms: IV, Little Joe, tetrad, 4, four, foursome, quartet, quatern, quaternary, quaternion, quaternity, quadruplet
Definition: the cardinal number that is the sum of three and one
Definition: one of the elements that collectively form a system of numeration
Usage: 0 and 1 are digits
Definition: being one more than three
Similar words: cardinal
Definition: being or denoting a numerical quantity but not order
Usage: cardinal numbers