trump

American Heritage® Dictionary of the English Language, Fourth Edition

1. n. Games A suit in card games that outranks all other suits for the duration of a hand. Often used in the plural.
2. n. Games A card of such a suit.
3. n. Games A trump card.
4. n. A key resource to be used at an opportune moment.
5. n. Informal A reliable or admirable person.
6. v. Games To take (a card or trick) with a trump.
7. v. To get the better of (an adversary or competitor, for example) by using a crucial, often hidden resource.
8. v. Games To play a trump.
9. trump up To devise fraudulently: trumped up a charge of conspiracy.
10. n. A trumpet.

Century Dictionary and Cyclopedia

1. n. A tube; pipe.
2. n. A musical wind-instrument; a trumpet: as, the trump of doom; the last trump (the summons to final judgment).
3. n. A trumpeter; a herald. See trumpet, 3.
4. n. A jews'-harp.
5. To blow a trumpet.
6. To impose upon; dupe; deceive; gull.
7. To obtrude or impose unfairly.
8. n. One card of that suit which for the time being outranks the other suits, and which is generally determined by turning up the last card in dealing, but in some games by choice or otherwise; also, the suit which thus outranks the others (a loose use, for the plural trumps).
9. n. An old game at cards, also called ruff (see ruff), the original of the modern game of whist. See triumph, 7.
10. n. A person upon whom one can depend; one who spontaneously does the right thing in any emergency; a good fellow.
11. To put a trump-card upon; take with a trump.
12. In card-playing, to play a trumpcard when another suit has been led.

Wiktionary

1. n. US, singular, card games The suit, in a game of cards, that outranks all others.
2. n. UK, in the plural, card games The suit, in a game of cards, that outranks all others.
3. n. card games A playing card of that suit.
4. n. figuratively Something that gives one an advantage, especially one held in reserve.
5. n. colloquial An excellent person; a fine fellow, a good egg.
6. v. transitive (card games) To play a trump (on a card of another suit).
7. v. intransitive (card games) To play a trump, or to take a trick with a trump
8. v. transitive To get the better of, or finesse, a competitor.
9. v. transitive To supersede.
10. v. intransitive (UK) To flatulate.
11. n. obsolete A trumpet.

GNU Webster's 1913

1. n. A wind instrument of music; a trumpet, or sound of a trumpet; -- used chiefly in Scripture and poetry.
2. v. obsolete To blow a trumpet.
3. n. A winning card; one of a particular suit (usually determined by chance for each deal) any card of which takes any card of the other suits.
4. n. An old game with cards, nearly the same as whist; -- called also ruff.
5. n. Slang A good fellow; an excellent person.
6. v. To play a trump card when one of another suit has been led.
7. v. To play a trump card upon; to take with a trump card.
8. v. obsolete To trick, or impose on; to deceive.
9. v. To impose unfairly; to palm off.

WordNet 3.0

1. n. a playing card in the suit that has been declared trumps
2. v. proclaim or announce with or as if with a fanfare
3. v. get the better of
4. n. a brass musical instrument with a brilliant tone; has a narrow tube and a flared bell and is played by means of valves
5. v. play a trump
6. v. produce a sound as if from a trumpet
7. n. (card games) the suit that has been declared to rank above all other suits for the duration of the hand