- 1 a playing card with a large single symbol on it, which has either the highest or the lowest value in a particular card game the ace of spades/hearts/diamonds/clubs Wordfinderace, card, cut, deal, gambling, hand, jack, shuffle, suit, trump See related entries: Card games
- 2(informal) a person who is very good at doing something a soccer/flying ace an ace marksman Brazilian ace Neilton scored a late penalty.
- 3(in tennis) a serve (= the first hit) that is so good that your opponent cannot reach the ball He served 20 aces in the match. Del Potro has served fifteen aces in the match so far. See related entries: Tennis Word Origin Middle English (denoting the “one” on dice): via Old French from Latin as
(informal) a secret advantage, for example a piece of information or a skill, that you are ready to use if you need to to have all the advantages in a situation The union soon realized that the management held all the aces. to use your best argument, etc. in order to get an advantage in a situation (British English) very close to something We came within an ace of victory.