trump card

• Ресурс, стратегия или информация, дающие кому-либо решающее преимущество перед другими, особенно при использовании в критический момент. Происходит из карточных игр, где козырная карта бьёт все остальные масти.

A resource, strategy, or piece of information that gives someone a decisive advantage over others, especially when used at a critical moment. Originates from card games where a trump card beats all others in a suit.

1. B2informal

   A resource or strategy that gives someone a decisive advantage over others, especially in a competitive situation.

   Козырь

   • Her experience in crisis management was her trump card during the negotiations.
   • The company's new technology is their trump card in the market.
   • He played his trump card by revealing the secret information at the last moment.

2. Winning move in card gamesB1formal

   In card games, a card from the suit that outranks all other suits for that round.

   Козырная карта

   • He saved his trump card for the final trick.
   • Playing a trump card can change the outcome of the game.
   • She used her trump card to win the round.