null: Meaning and Definition of

null

Pronunciation: (nul), [key]
— adj.
  1. without value, effect, consequence, or significance.
  2. being or amounting to nothing; nil; lacking; nonexistent.
  3. (of a set)
    1. empty.
    2. of measure zero.
  4. being or amounting to zero.
  5. without legal force or effect; not valid: This contract is null and void.
—n.
  1. a point of minimum signal reception, as on a radio direction finder or other electronic meter.
—v.t.
  1. to cancel; make null.
Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease.
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