null

Noun

1. A non-existent or empty value or set of values.
2. Zero quantity of expressions; nothing.
3. Something that has no force or meaning.
4. The null character; the ASCII or Unicode character (␀), represented by a zero value, which indicates no character and is sometimes used as a string terminator.
5. The attribute of an entity that has no valid value.
6. One of the beads in nulled work.
7. The null hypothesis.

Adj

1. Having no validity; "null and void".
2. Insignificant.
3. Absent or non-existent.
4. Of the null set.
5. Of or comprising a value of precisely zero.
6. Causing a complete loss of gene function; amorphic.
7. Neutral.

Verb

1. (archaic, transitive) To nullify; to annul.
2. To return to the null position, setting, etc.
3. To form nulls, or into nulls, as in a lathe.
4. (slang, transitive) To crack; to remove restrictions or limitations in (software).

Pronounced as (IPA)

/nʌl/

Etymology

Borrowed from Middle French nul, from Latin nūllus.