from The American Heritage® Dictionary of the English Language, 4th Edition

  • transitive v. To make necessary or unavoidable.
  • transitive v. To require or compel.

from Wiktionary, Creative Commons Attribution/Share-Alike License

  • v. To require something to be brought about.

from the GNU version of the Collaborative International Dictionary of English

  • transitive v. To make necessary or indispensable; to render unavoidable.
  • transitive v. To reduce to the necessity of; to force; to compel.

from The Century Dictionary and Cyclopedia

  • To make necessary or indispensable; render unavoidable; cause to be a necessary consequence.
  • To force irresistibly; compel; oblige; impel by necessity.
  • To reduce to a state of need; threaten or oppress by necessity or need, or the prospect of need.
  • Synonyms To constrain, drive.
  • Necessitated.

from WordNet 3.0 Copyright 2006 by Princeton University. All rights reserved.

  • v. require as useful, just, or proper
  • v. cause to be a concomitant


from The American Heritage® Dictionary of the English Language, 4th Edition

Medieval Latin necessitāre, necessitāt-, from Latin necessitās, necessity; see necessity.

from Wiktionary, Creative Commons Attribution/Share-Alike License

From Medieval Latin necessitatus, past participle of necessitare ("to make necessary"), from Latin necessitas ("necessity"); see necessity.


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