trump card
The term "trump card" originates from card games where it represents a card that can override others. It is also used metaphorically to describe an unexpected advantage.
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Definition
B2Card Games
(technical)A card from a suit that is chosen to have a higher value than the other suits, used to win a trick.
Example
- He played his trump card and won the game.
B2General
(figurative)An advantage or resource used to gain a decisive edge in a situation.
Example
- Her experience in negotiations was her trump card during the meeting.
Similar
Terms that have similar or relatively close meanings to "trump card":