'6' definitions:

Definition of '6'

(from WordNet)
adjective
Denoting a quantity consisting of six items or units [syn: six, 6, vi, half dozen, half-dozen]
noun
The cardinal number that is the sum of five and one [syn: six, 6, VI, sixer, sise, Captain Hicks, half a dozen, sextet, sestet, sextuplet, hexad]