Princeton's WordNet

1. trump, trump card(noun)

   a playing card in the suit that has been declared trumps

   Synonyms:
   cornet, trumpet, trump card, trump, horn

2. trump(noun)

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

   Synonyms:
   cornet, trumpet, trump card, horn

3. cornet, horn, trumpet, trump(verb)

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

   Synonyms:
   horn, saddle horn, trump card, car horn, automobile horn, motor horn, hooter, trump, trumpet, cornet

4. trump(verb)

   produce a sound as if from a trumpet

   Synonyms:
   scoop, best, trump out, outflank, outdo, ruff

5. outdo, outflank, trump, best, scoop(verb)

   get the better of

   Synonyms:
   trump out, outflank, outmatch, exceed, scoop, outgo, go around, surmount, outperform, lift out, take up, ruff, scoop up, outstrip, scoop out, best, trump, outdo, surpass

6. trump, ruff(verb)

   play a trump

   Synonyms:
   scoop, trump, best, trump out, outflank, outdo, ruff

7. trump, trump out(verb)

   proclaim or announce with or as if with a fanfare

   Synonyms:
   scoop, trump, best, trump out, outflank, outdo, ruff