Definitions
1.nounA non-existent or empty value or set of values.
2.nounZero quantity of expressions; nothing.
3.nounSomething that has no force or meaning.
4.nounThe ASCII or Unicode character (␀), represented by a zero value, that indicates no character and is sometimes used as a string terminator.
5.nounThe attribute of an entity that has no valid value."Since no date of birth was entered for the patient, his age is null."
6.nounOne of the beads in nulled work.
7.nounNull hypothesis.
8.verbTo nullify; to annul.
9.verbTo form nulls, or into nulls, as in a lathe.
10.verbTo crack; to remove restrictions or limitations in (software).
11.adjectiveHaving no validity; "null and void"
12.adjectiveInsignificant.
13.adjectiveAbsent or non-existent.
14.adjectiveOf the null set.
15.adjectiveOf or comprising a value of precisely zero.
16.adjective(of a mutation) Causing a complete loss of gene function, amorphic.