null

/nʌl/

noun

  1. 1

    A non-existent or empty value or set of values.

  2. 2

    Zero quantity of expressions; nothing.

  3. 3

    Something that has no force or meaning.

  4. 4

    The ASCII or Unicode character (␀), represented by a zero value, that indicates no character and is sometimes used as a string terminator.

  5. 5

    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. 6

    One of the beads in nulled work.

  7. 7

    Null hypothesis.

verb

  1. 1

    To nullify; to annul.

  2. 2

    To form nulls, or into nulls, as in a lathe.

  3. 3

    To crack; to remove restrictions or limitations in (software).

adjective

  1. 1

    Having no validity; "null and void"

  2. 2

    Insignificant.

  3. 3

    Absent or non-existent.

  4. 4

    Of the null set.

  5. 5

    Of or comprising a value of precisely zero.

  6. 6

    (of a mutation) Causing a complete loss of gene function, amorphic.

Antonyms

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