Definition of wild card noun from the Oxford Advanced Learner's Dictionary

     

    wild card

     noun
    noun
    BrE
     
    ; NAmE
     
     
    jump to other results
  1. 1(in card games) a card that has no value of its own and takes the value of any card that the player chooses
  2. 2(sport) an opportunity for somebody to play in a competition when they have not qualified in the usual way; a player who enters a competition in this way He was given a wild card for the tournament. She was beaten in the semi-finals by wild card Louise Smith.
  3. 3(computing) a symbol that can represent any letter or number An asterisk is commonly used as a wild card. a wild-card search
  4. 4a person or thing whose behaviour or effect is difficult to predict The Nationalist party is the wild card in the election.
See the Oxford Advanced American Dictionary entry: wild card