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1. Dictionary

   Chal·lenge

   /ˈCHalənj/

   

   noun

   • 1. a call to take part in a contest or competition, especially a duel: "he accepted the challenge" Similar dareprovocationsummons
   • ▪ a task or situation that tests someone's abilities: "the ridge is a challenge for experienced climbers" Similar problemdifficult tasktesttrialtroublebotherobstacle
   • ▪ an attempt to win a contest or championship in a sport: "a world title challenge"
   • 2. an objection or query as to the truth of something, often with an implicit demand for proof: "a challenge to the legality of the order" Similar confrontation withdispute withstand againsttest ofoppositiondisagreement withquestioning ofdefianceultimatum
   • ▪ a sentry's call for a password or other proof of identity: "I heard the challenge “Who goes there?”"
   • ▪ an objection regarding the eligibility or suitability of a jury member.
   • 3. the administration of an immunogenic or infectious agent to an animal or person, in order to study the resulting immune response or measure the efficacy of a vaccine: "challenge trials have yielded positive results when carefully and ethically conducted"

   verb

   • 1. invite (someone) to engage in a contest: "he challenged one of my men to a duel" Similar daresummoninvitebidthrow down the gauntlet todefy someone to do something
   • ▪ enter into competition with or opposition against: "the beauty industry as we know it is being challenged by a group of pioneers hoping to change the way we see our bodies"
   • ▪ make a rival claim to or threaten someone's hold on (a position): "they were challenging his leadership"
   • ▪ invite (someone) to do or say something that one thinks will be difficult or impossible: "I challenge the Minister to deny these accusations"
   • ▪ make demands on; prove testing to: "a new way of life that would challenge them" Similar testtaxtrystrainmake demands onwearywear outdrainsapstretchstimulatearouseinspireexcitespur on
   • 2. dispute the truth or validity of: "it is possible to challenge the report's assumptions" Similar questiondisagree withobject totake exception toconfrontdisputetake issue withprotest againstcall into questiondemur about/againstdissent frombe a dissenter from
   • ▪ object to (a jury member).
   • ▪ (of a guard) order (someone) to prove their identity: "the watchman did not challenge him"
   • 3. administer an immunogenic or infectious agent to an animal or person, in order to study the resulting immune response or measure the efficacy of a vaccine: "the mice were challenged with the influenza virus"

   Word Origin Middle English (in the senses ‘accusation’ and ‘accuse’): from Old French chalenge (noun), chalenger (verb), from Latin calumnia ‘calumny’, calumniari ‘calumniate’.

   Derivatives

   • 1. challengeable adjective

   Scrabble Points: 15

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2. www.merriam-webster.com › dictionary › challengeChallenge Definition & Meaning - Merriam-Webster

   www.merriam-webster.com › dictionary › challenge

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   Learn the various meanings and uses of the word challenge as a verb and a noun, with synonyms, examples, etymology, and history. Find out how to cite, share, and explore challenge in different contexts, such as law, medicine, and sports.

3. dictionary.cambridge.org › english › challengeCHALLENGE | English meaning - Cambridge Dictionary

   dictionary.cambridge.org › english › challenge

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   Learn the meaning of challenge as a noun and a verb in English, with different senses and usage. Find out how to use challenge in sentences, expressions, and idioms with examples and synonyms.

4. www.dictionary.com › browse › challengeCHALLENGE Definition & Meaning | Dictionary.com

   www.dictionary.com › browse › challenge

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   Learn the meaning and origin of the word challenge, as well as its synonyms, related words, and usage examples. Challenge can refer to a call to a contest, a demand to explain, a demand to stop, or a demand to prove something.

5. www.vocabulary.com › dictionary › challengeChallenge - Definition, Meaning & Synonyms | Vocabulary.com

   www.vocabulary.com › dictionary › challenge

   Definitions of challenge. noun. a call to engage in a contest or fight. synonyms: gauntlet. see more. verb. issue a challenge to. “Fischer challenged Spassky to a match” see more. verb. take exception to. “She challenged his claims” synonyms: dispute, gainsay. see more. noun. questioning a statement and demanding an explanation.

6. www.thefreedictionary.com › challengeChallenge - definition of challenge by The Free Dictionary

   www.thefreedictionary.com › challenge

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   Learn the meaning, pronunciation, and usage of the word challenge, as well as its synonyms, antonyms, and related terms. Find out how to use challenge in different contexts, such as law, military, hunting, and immunology, with examples and references.

7. dictionary.cambridge.org › challengeCHALLENGE | definition in the Cambridge Learner’s Dictionary

   dictionary.cambridge.org › challenge

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   Learn the meaning of challenge as a noun and a verb, with examples of usage and translations. Challenge can mean a difficult task, a game or fight invitation, or a disagreement with authority.

8. www.collinsdictionary.com › english › challengeCHALLENGE definition and meaning | Collins English Dictionary

   www.collinsdictionary.com › english › challenge

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   4 days ago · Learn the various meanings and uses of the word challenge as a noun and a verb in English. Find synonyms, examples, pronunciation, and related terms for challenge.