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English definition of “wild card”

wild card

noun [C] /ˈwɑɪld ˌkɑrd/

wild card noun [C] (ANY VALUE)

(in some card games) a card that can be used instead of any other: fig. Undecided voters are this election’s wild card.

wild card noun [C] (CHANCE TO PLAY)

(in sports) an extra opportunity to qualify for a championship competition
(Definition of wild card from the Cambridge Academic Content Dictionary © Cambridge University Press)
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