| null | |
| 1. n. A non-existent or empty value or set of values. | |
| 2. n. Zero quantity of expressions; nothing. | |
| 3. n. Something that has no force or meaning. | |
| 4. n. (computing) the ASCII or Unicode character (sc=Latinx, ␀), represented by a zero value, that indicates no character and is sometimes used as a string terminator. | |
| 5. n. (computing) the attribute of an entity that has no valid value. | |
| Since no date of birth was entered for the patient, his age is null. | |
| 6. n. One of the beads in nulled work. | |
| 7. n. (statistics) null hypothesis | |
| 8. adj. Having no validity; "null and void". | |
| 9. adj. Insignificant. | |
| 10. adj. Absent or non-existent. | |
| 11. adj. (mathematics) Of the null set. | |
| 12. adj. (mathematics) Of or comprising a value of precisely zero. | |
| 13. adj. (genetics, of a mutation) Causing a complete loss of gene function, amorphic. | |
| 14. v. (transitive, archaic) To nullify; to annul. | |
| 15. v. To form nulls, or into nulls, as in a lathe. | |
