noun

1. any playing card of a suit that ranks higher than any other suit during the playing of a hand: a trump can take any card of any other suit
2. a suit of trumps
3. any advantage held in reserve until needed
4. Informal a fine person, good fellow, etc.

Etymology: altered < triumph

transitive verb

1. to play a trump on (a trick, another card, etc.) when a trump was not led, often, specif., so as to take it thereby
2. to surpass; outdo

intransitive verb

noun, transitive verb, intransitive verb

Etymology: ME trumpe < OFr trompe < Frank *trumpa or OHG trumba, of echoic orig.