also trump card
(in some card games) a card that belongs to the suit (= one of the four sets in a pack/ deck of cards) that has been chosen for a particular game to have a higher value than the other three suits （某些纸牌游戏的一张）王牌，主牌，将牌
I played a trump and won the trick.
我打出一张主牌，赢了那一墩。
trumps [U + sing./pl. v.] (in some card games) the suit that has been chosen for a particular game to have a higher value than the other three suits （某些纸牌游戏的）王牌花色，主牌花色
What’s trumps?
王牌是什么？
Clubs are trumps.
梅花是主牌。