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

  • n. The act or an instance of canceling.
  • n. A mark or a perforation indicating canceling.
  • n. Something canceled, especially a released accommodation or an unfilled appointment.

from Wiktionary, Creative Commons Attribution/Share-Alike License

  • n. The act, process, or result of canceling; as, the cancellation of certain words in a contract, or of the contract itself.
  • n. The operation of striking out common factors, in both the dividend and divisor.
  • n. A postmark that marks a postage stamp so as to prevent its reuse.
  • n. In United States intellectual property law, a proceeding in which an interested party seeks to cancel the registration of a trademark or patent.

from the GNU version of the Collaborative International Dictionary of English

  • n. The act, process, or result of canceling.
  • n. The operation of striking out common factors, in both the dividend and divisor.

from The Century Dictionary and Cyclopedia

  • n. See cancelation.
  • n. In anatomy, reticulation; the state of being cancellated: as, the cancellation of bone.
  • n. In gastropods, the system of intersecting ridges on the surface of the shell.

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

  • n. the act of cancelling; calling off some arrangement
  • n. the speech act of revoking or annulling or making void


cancel +‎ -ation (Wiktionary)


  • "Even in the case that clients use the word cancellation as a remote possibility, companies need to start acting on reducing the intake of people, reducing costs and ultimately protecting the bottom line," Mr. Vree adds.

    Corporate SOS

  • Failure to do so can result in cancellation of your child's procedure.

    Scheduling and Arrival

  • Question: I realize the Lone Star cancellation is "old news," but I have two questions about it.

    Ask Matt: Fringe, Terriers, House, Bones, Fall Malaise and More!

  • I agree that cancellation is the wrong way to describe it.

    24 Officially Canceled | /Film

  • To even think that the DI's press release has something to do with the cancellation is mere tard-talk.

    Darwin's Dilemna Premiering

  • Apparently its cancellation is part of an innovative new media strategy that involves commissioning no more separate columns or blogs for the magazine's website.

    I've lost the Farm

  • The testing agency recently began investigating the claims, which could result in cancellation of scores provided to colleges.


  • I guarantee you, as it stands now, cancellation is the fate of Constellation and EELV will wind up trapping is in LEO for another 40 years, or worse, on the ground.

    New Uses for Constellation Systems? - NASA Watch

  • Fail to prosecute a viable human space exploration program beyond LEO will result in cancellation of the UNmanned probes after about three or four Congressional election cycles.

    Augustine Commission Website Now Online - NASA Watch

  • I am childless - the concept of this being the reason for a swimming lesson cancellation is superb!



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  • In stamp collecting, a mark placed on a stamp by a postal authority to show that it has been used. Also cancel.

    August 25, 2008