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

  • noun A call to engage in a contest, fight, or competition.
  • noun An act or statement of defiance; a call to confrontation.
  • noun A demand for explanation or justification; a calling into question.
  • noun A sentry's call to an unknown party for proper identification.
  • noun A test of one's abilities or resources in a demanding but stimulating undertaking.
  • noun A claim that a vote is invalid or that a voter is unqualified.
  • noun A formal objection to the inclusion of a prospective juror in a jury.
  • noun A legal case testing the validity of an action taken, particularly by the government.
  • noun Immunology The induction or evaluation of an immune response in an organism by administration of a specific antigen to which it has been sensitized.
  • intransitive verb To call to engage in a contest, fight, or competition.
  • intransitive verb To invite with defiance; dare.
  • intransitive verb To confront or struggle with (something) as a test of one's abilities.
  • intransitive verb To take exception to; call into question; dispute.
  • intransitive verb To order to halt and be identified, as by a sentry.
  • intransitive verb To take formal objection to (a prospective juror).
  • intransitive verb To bring a legal case testing the validity of an action, particularly by the government.
  • intransitive verb To question the qualifications of (a voter) or the validity of (a vote).
  • intransitive verb To have due claim to; call for.
  • intransitive verb To summon to action, effort, or use; stimulate.
  • intransitive verb Immunology To induce or evaluate an immune response in (an organism) by administering a specific antigen to which it has been sensitized.
  • intransitive verb To make or give voice to a challenge.
  • intransitive verb To begin barking upon picking up the scent. Used of hunting dogs.

from The Century Dictionary.

  • noun In the East Indies, an exception taken by a ryot to the assessment of a neighbor's holding when it is less than that of his own poorer holding, accompanied by an offer to take over the neighbor's holding at a higher assessment, and a claim for the assessment on his own to be correspondingly reduced.
  • To accuse; call to answer; censure.
  • To lay claim to; demand as due or as a right: as, the Supreme Being challenges our reverence and homage.
  • To call, invite, or summon to single combat or duel.
  • To call to a contest; call into opposing activity; invite to a trial; defy: as, to challenge a man to prove what he asserts (implying defiance).
  • To take exception to; object to (a person or thing); call in question: as, to challenge the accuracy of a statement. Specifically
  • In law, to object or take exception to, as a juror or jury panel. See challenge, n., 9—7. Milit., to demand the countersign from: as, a sentry is bound to challenge every person appearing near his post. See challenge, n., 6.
  • In hunting, to whimper or cry when the scent of game is first discovered: said of a hound.
  • noun Accusation; charge.
  • noun A claim or demand; pretension.
  • noun A summons or invitation to a duel; a calling upon one to engage in single combat, as for the vindication of the challenger's honor; a defiance.
  • noun Hence An invitation to a contest or trial of any kind: as, a challenge to a rubber at whist; a challenge to a public debate; “a challenge to controversy,”
  • noun The letter or message containing the summons to a combat or contest.
  • noun Milit., the act of a sentry in demanding the countersign from any one who approaches his post.
  • noun In hunting, the opening cry of hounds on first finding the scent of their game.
  • noun A calling in question; an exception taken, as to the tenability of a proposition, or a person's right to do something or to hold something.
  • noun In law, an objection to a juror; the claim of a party that a certain juror shall not sit in the cause.

from the GNU version of the Collaborative International Dictionary of English.

  • intransitive verb To assert a right; to claim a place.
  • noun An invitation to engage in a contest or controversy of any kind; a defiance; specifically, a summons to fight a duel; also, the letter or message conveying the summons.
  • noun The act of a sentry in halting any one who appears at his post, and demanding the countersign.
  • noun obsolete A claim or demand.
  • noun (Hunting) The opening and crying of hounds at first finding the scent of their game.
  • noun (Law) An exception to a juror or to a member of a court martial, coupled with a demand that he should be held incompetent to act; the claim of a party that a certain person or persons shall not sit in trial upon him or his cause.
  • noun United States An exception to a person as not legally qualified to vote. The challenge must be made when the ballot is offered.


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

[Middle English chalenge, from Old French, from Latin calumnia, trickery, false accusation; see calumny. V., Middle English chalengen, from Old French chalangier, from Latin calumniārī, from calumnia.]

from Wiktionary, Creative Commons Attribution/Share-Alike License

From Old French chalonge, chalenge, from Latin calumnia.


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  • Okay, Wordizens! A colleague of mine needs images of wolf regurgitation. (Don't ask why.) He wasn't able to find a single image online. I'm willing to bet someone in this community can find him one. Anyone??

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