4
| adj. | 1. | one more than three; denoting a quantity consisting of four items or units; - representing the number four as an Arabic numeral |
| Noun | 1. |  4 - the cardinal number that is the sum of three and oneSynonyms: IV, Little Joe, quadruplet, quartet, quatern, four, quaternion, quaternity, tetrad, foursome, quaternary |
| Adj. | 1. | 4 - being one more than three |