null

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Adjective[change]

Positive
null

Comparative
none

Superlative
none

  1. If a law, contract, rule, etc. is null and void, it has no force.
    Your marriage to the King has been declared null and void.

Noun[change]

Singular
null

Plural
nulls

  1. (countable) A null is a 0 or ∅.
    The temperature is null point five four (0.54).
  2. (usually before a noun) A null hypothesis is the idea that there is no relationship, effect, or difference in an experiment.
    Again, the null hypothesis stating no difference was rejected.
  3. (countable) A null is a symbol with no meaning or effect.

Verb[change]

Plain form
null

Third-person singular
nulls

Past tense
nulled

Past participle
nulled

Present participle
nulling

  1. (transitive) If you null (out) a force, effect, signal, etc., you cancel it out or remove it.

Synonyms[change]

  • nothing
  • zero