null

Fetched 2026-10-26 (cache).

Datamuse reports no synonyms or antonyms for this word.

Noun

1. A non-existent or empty value or set of values.
2. [[zero|Zero]] [[quantity]] of [[expression|expressions]]; [[nothing]].
3. Something that has no force or meaning.
4. {{lb|en|computing}} The [[null character]]; the [[ASCII]] or [[Unicode]] character (<big><big>{{lang|mul|[[␀]]}}</big></big>), represented by a [[zero]] value, which indicates no character and is sometimes used as a [[string]] [[terminator]].
5. {{lb|en|computing}} The [[attribute]] of an [[entity]] that has no [[valid]] [[value]].
6. One of the [[bead]]s in [[nulled work]].
7. {{lb|en|statistics}} The [[null hypothesis]].

Adjective

1. Having no validity; "[[null and void]]".
2. [[insignificant|Insignificant]].
3. [[absent|Absent]] or [[non-existent]].
4. {{lb|en|mathematics}} Of the [[null set]].
5. {{lb|en|mathematics}} Of or [[comprise|comprising]] a [[value]] of precisely [[zero]].
6. {{lb|en|genetics|of a mutation}} Causing a complete loss of [[gene]] function; [[amorphic]].
7. {{lb|en|mechanical engineering|of a position or setting}} [[neutral|Neutral]].

Verb

1. {{lb|en|transitive|archaic}} To [[nullify]]; to [[annul]].
2. To return to the [[#Adjective|null]] [[position]], [[setting]], etc.
3. To form [[#Noun|null]]s, or into [[#Noun|null]]s, as in a [[lathe]].
4. {{lb|en|computing|slang|transitive}} To [[crack]]; to remove restrictions or limitations in (software).

Proper noun

1. {{surname|en}}.

Source: Wiktionary · CC BY-SA 4.0 (Wiktionary dump) · cached copy, not a rewrite.