trump card Definition

trump, ploy, masterstroke, gambit, tactic, clout, adversary, stratagem, crucial, trick, brinkmanship, persuasion, cunning, sleight, bargaining chip, fulcrum, linchpin, undertrump, saving grace, achilles heel, lynchpin, litmus test, bogeyman, nemesis, hardball, overtrump, bluffing, talisman, weapon, blinder, powerbroker, bludgeon, stumbling block, bugbear, kingmaker, factor, cudgel, hot potato, kryptonite, formidability, cagy, indubitable, sway, motivator, forte, undoubted, hilt, canniest, pyrrhic victory, carrot, gamble, yardstick, ally, savior, joker, changer, pivotal, red herring, thorn, wield, covets, crowd puller, villain, key, overplaying, equation, opponents, boon, indispensability, wiles, bete noire, undefeatable, anathema, enamour, smokescreen, conjuring trick, spanner, bogy, machiavellian, advantages, pawns, nous, determinant, frontrunner, spades, stalwart, bargain, bogyman, battleground, guile, wily, levers, mortal enemy, betrayer, tormentor, discomfit, arsenal, sticky wicket, watchword, blackmail,