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English definition of “challenge”

challenge

noun [C] (INVITATION)    /ˈtʃæl.ɪndʒ/
an invitation to compete or take part , especially in a game or argument : "I bet you can't eat all that food on your plate ." "Is that a challenge?" [+ to infinitive] She issued a challenge to her rival candidates to take part in a public debate .Competing and contending (non-sporting)Competing in sport
(Definition of challenge noun (INVITATION) from the Cambridge Advanced Learner's Dictionary & Thesaurus © Cambridge University Press)
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