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1. Dictionary

   challenge

   /ˈtʃalɪn(d)ʒ/

   noun

   • 1. a call to someone to participate in a competitive situation or fight to decide who is superior in terms of ability or strength: "he accepted the challenge" Similar dareprovocationsummons
   • ▪ a task or situation that tests someone's abilities: "the traverse of the ridge is a challenge for experienced climbers" Similar problemdifficult tasktesttrialtroublebotherobstacle
   • ▪ an attempt to win a contest or championship in a sport: "he is desperate for a third world title challenge"
   • 2. a call to prove or justify something: "a challenge to the legality of the banning order" Similar confrontation withdispute withstand againsttest ofoppositiondisagreement withquestioning ofdefianceultimatum
   • ▪ a guard'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): "a certain number of jurors may be challenged"
   • ▪ (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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   More definitions, origin and scrabble points

2. dictionary.cambridge.org › dictionary › englishCHALLENGE | English meaning - Cambridge Dictionary

   dictionary.cambridge.org › dictionary › english

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   CHALLENGE definition: 1. (the situation of being faced with) something that needs great mental or physical effort in…. Learn more.

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

   www.merriam-webster.com › dictionary › challenge

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   verb. chal· lenge ˈcha-lənj. challenged; challenging. Synonyms of challenge. transitive verb. 1. : to dispute especially as being unjust, invalid, or outmoded : impugn. new data that challenges old assumptions. 2. a. : to confront or defy boldly : dare. he challenged his critics to prove his guilt. b. : to call out to duel or combat.

4. www.collinsdictionary.com › dictionary › englishCHALLENGE definition and meaning | Collins English Dictionary

   www.collinsdictionary.com › dictionary › english

   • Cached

   1. to invite or summon (someone to do something, esp to take part in a contest) 2. (also intr) to call (something) into question; dispute. 3. to make demands on; stimulate. the job challenges his ingenuity. 4. to order (a person) to halt and be identified or to give a password.

5. www.oxfordlearnersdictionaries.com › definition › englishchallenge noun - Definition, pictures, pronunciation and usage...

   www.oxfordlearnersdictionaries.com › definition › english

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   a new or difficult task that tests somebody’s ability and skill. a tough/major/significant challenge. The role will be the biggest challenge of his acting career. She still faces many challenges (= has to deal with them). Destruction of the environment is one of the most serious challenges we face.

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

   www.vocabulary.com › dictionary › challenge

   verb. take exception to. “She challenged his claims”. synonyms: dispute, gainsay. see more. challenge (somebody) to make good on a statement; charge with or censure for an offense. make the subject of dispute, contention, or litigation. noun. questioning a statement and demanding an explanation.

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

   www.thefreedictionary.com › challenge

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   1. a summons to engage in contest, as of skill or strength. 2. something that by its nature or character serves as a serious test: Space exploration offers a challenge to humankind. 3. a call to fight, as in a duel. 4. a demand to explain, justify, etc.

8. www.oxfordlearnersdictionaries.com › definition › american_englishchallenge noun - Definition, pictures, pronunciation and usage...

   www.oxfordlearnersdictionaries.com › definition › american_english

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   challenge (to something) a statement or an action that shows that someone refuses to accept something and questions whether it is right, legal, etc. It was a direct challenge to the president's authority. Their legal challenge was unsuccessful.

9. dictionary.cambridge.org › dictionary › learner-englishMeaning of challenge – Learner’s Dictionary - Cambridge ...

   dictionary.cambridge.org › dictionary › learner-english

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   something that is difficult and that tests someone's ability or determination: Finding a decision that pleases everyone is the challenge which now faces the committee. It was the element of challenge which attracted me to the job. Fewer examples. an awesome challenge. a daunting challenge.

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

    www.dictionary.com › browse › challenge

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    Challenge definition: a call or summons to engage in any contest, as of skill, strength, etc.. See examples of CHALLENGE used in a sentence.

11. www.britannica.com › dictionary › challengeChallenge Definition & Meaning | Britannica Dictionary

    www.britannica.com › dictionary › challenge

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    CHALLENGE meaning: 1 : to say or show that (something) may not be true, correct, or legal dispute; 2 : to question the action or authority of (someone)