challenge

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You're listening to Joanna
She has an American accent.

NGSL Rank: 765
challenge
ˈtʃalɪn(d)ʒ Listen
Meanings
noun
  • a call to someone to participate in a competitive situation or fight to decide who is superior in terms of ability or strength.
    E.g. he accepted the challenge
  • a call to prove or justify something.
    E.g. a challenge to the legality of the banning order
  • exposure of the immune system to pathogenic organisms or antigens.
    E.g. recently vaccinated calves should be protected from challenge
verb
  • dispute the truth or validity of.
    E.g. it is possible to challenge the report's assumptions
  • invite (someone) to engage in a contest.
    E.g. he challenged one of my men to a duel
  • expose (the immune system) to pathogenic organisms or antigens.

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challenge
Joanna
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