1trump 
/ˈtrʌmp/ noun
plural trumps /ˈtrʌmp/ noun 1 [count] : a card from the suit that has been chosen as the most valuable for a particular card game
▪ I won the trick by playing a trump. —called also trump card 2 trumps [plural] : the suit whose cards are the most valuable for a particular card game
▪ Diamonds are trumps.
▪ I won the trick by playing a trump. —called also trump card
▪ Diamonds are trumps.
come/turn up trumps
Brit, informal : to do or provide what is necessary in order to succeed
▪ The team turned up trumps in the final game and won the championship.
▪ The team turned up trumps in the final game and won the championship.
