from The American Heritage® Dictionary of the English Language, 5th Edition.

  • noun An outcome that is certain or assured; a certainty.
  • interjection Of course; certainly.

from Wiktionary, Creative Commons Attribution/Share-Alike License.

  • interjection informal A reply to thank you.
  • interjection An affirmative reply; yes; certainly.
  • noun US That which is certain.

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

  • noun something that is certain


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