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

   www.dictionary.com › browse › challenge

   • Cached

   a call to engage in a fight, argument, or contest. a questioning of a statement or fact; a demand for justification or explanation. a demanding or stimulating situation, career, object, etc. a demand by a sentry, watchman, etc, for identification or a password.

3. www.oxfordlearnersdictionaries.com › challenge_2challenge verb - Definition, pictures, pronunciation and ...

   www.oxfordlearnersdictionaries.com › challenge_2

   • Cached

   Definition of challenge verb in Oxford Advanced American Dictionary. Meaning, pronunciation, picture, example sentences, grammar, usage notes, synonyms and more.

4. www.oxfordlearnersdictionaries.com › us › definitionchallenge noun - Definition, pictures, pronunciation and ...

   www.oxfordlearnersdictionaries.com › us › definition

   • Cached

   /ˈtʃælɪndʒ/ 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.

5. www.thefreedictionary.com › ChallengeChallenge? - definition of Challenge? by The Free Dictionary

   www.thefreedictionary.com › Challenge

   • Cached

   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.

6. www.collinsdictionary.com › challengeSynonyms of CHALLENGE | Collins American English Thesaurus

   www.collinsdictionary.com › challenge

   • Cached

   2 days ago · Definition. a call to engage in a contest, fight, or argument. I like a challenge, and they don't come much bigger than this. Synonyms. dare. provocation. summons to contest. wero (New Zealand) See examples for synonyms. 2 (noun) in the sense of test. Definition. a demanding or stimulating situation.

7. en.bab.la › dictionary › englishchallenge - Definition in English - bab.la

   en.bab.la › dictionary › english

   • Cached

   UK /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 a task or situation that tests someone's abilities the traverse of the ridge is a challenge for experienced climbers he took up the challenge of organizing a sports a...

8. www.wordsmyth.netchallenge | Dictionaries and vocabulary tools for English ...

   www.wordsmyth.net

   • Cached

   features: Word Combinations ( noun, verb ), Word Explorer, Grammatical Patterns. Word Explorer. See. behavior. The meaning of challenge. Definition of challenge. English dictionary and integrated thesaurus for learners, writers, teachers, and students with advanced, intermediate, and beginner levels.