Definition of "Trump" :

noun: a brass musical instrument with a brilliant tone; has a narrow tube and a flared bell and is played by means of valves

noun: (card games) the suit that has been declared to rank above all other suits for the duration of the hand

"Clubs were declared trumps."

noun: a playing card in the suit that has been declared trumps

"The ace of trumps is a sure winner."

verb: proclaim or announce with or as if with a fanfare

verb: play a trump

verb: get the better of

verb: produce a sound as if from a trumpet