释义 |
WordReference Random House Unabridged Dictionary of American English © 2024chal•leng•er (chal′in jər),USA pronunciation n. - a person or thing that challenges.
- Sport[Boxing.]a boxer who fights a champion for his championship title.
- Radio and Televisioninterrogator (def. 2).
- Aerospace(cap., italics) [U.S. Aerospace.]the second space shuttle to orbit and return to earth: exploded 1½ min. after launch on Jan. 28, 1986, causing the death of all seven on board.
- 1250–1300; Middle English; see challenge, -er1
WordReference Random House Learner's Dictionary of American English © 2024chal•lenge /ˈtʃælɪndʒ/USA pronunciation n., v., -lenged, -leng•ing. n. - a call to compete in a contest or in a fight: [countable]I accept your challenge to a duel.[uncountable]A hint of challenge appeared on his face.
- something that by its nature is a test or a difficult thing to accomplish: [countable]Space exploration offers a challenge to humankind.[uncountable]I'd like work with a bit more challenge than this useless drudgery.
- a demand, request, or question to explain or justify something:[countable* ~ + to]His criticism was a challenge to every proposal we had made.
v. [~ + object] - to summon (someone) to a contest or fight:[~ + object + to + object]He challenged his foe to a duel.
- to test (someone) because of its difficulty:This obstacle course will really challenge him.
- to demand or question whether (something or someone) is correct, proper, or qualified:The leaders of the revolt challenged the dictator's authority.
- Militaryto halt and demand identification from:The guard challenged the reporter when she tried to enter the army base.
chal•leng•er, n. [countable] WordReference Random House Unabridged Dictionary of American English © 2024chal•lenge (chal′inj),USA pronunciation n., v., -lenged, -leng•ing, adj. n. - a call or summons to engage in any contest, as of skill, strength, etc.
- something that by its nature or character serves as a call to battle, contest, special effort, etc.:Space exploration offers a challenge to humankind.
- a call to fight, as a battle, a duel, etc.
- a demand to explain, justify, etc.:a challenge to the treasurer to itemize expenditures.
- difficulty in a job or undertaking that is stimulating to one engaged in it.
- Militarythe demand of a sentry for identification or a countersign.
- Lawa formal objection to the qualifications of a particular juror, to his or her serving, or to the legality of an entire jury. Cf. peremptory challenge.
- Governmentthe assertion that a vote is invalid or that a voter is not legally qualified.
- Physiology[Biol.]the process of inducing or assessing physiological or immunological activity by exposing an organism to a specific substance.
- Sport[Hunting.]the crying of a hound on finding a scent.
v.t. - to summon to a contest of skill, strength, etc.
- to take exception to;
call in question:to challenge the wisdom of a procedure. - to demand as something due or rightful.
- Militaryto halt and demand identification or countersign from.
- Lawto take formal exception to (a juror or jury).
- to have a claim to;
invite; arouse; stimulate:a matter which challenges attention. - Governmentto assert that (a vote) is invalid.
- Governmentto assert that (a voter) is not qualified to vote.
- Physiologyto expose an organism to a specific substance in order to assess its physiological or immunological activity.
- [Archaic.]to lay claim to.
v.i. - to make or issue a challenge.
- Sport[Hunting.](of hounds) to cry or give tongue on picking up the scent.
adj. - donated or given by a private, corporate, or government benefactor on condition that the recipient raise an additional specified amount from the public:a challenge grant.
- Latin calumnia calumny
- Old French, variant of chalonge
- Middle English chalenge 1175–1225
chal′lenge•a•ble, adj. - 11.See corresponding entry in Unabridged dare, bid, invite.
- 12.See corresponding entry in Unabridged question, impute, doubt.
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