ace

From Wiktionary

Pronunciation[change]

Noun[change]

Singular
ace

Plural
aces

  1. (countable) In card games, an ace is a card of value 1. In some games it is the card with the highest value
  2. (countable) In tennis, a player hits an ace when the opponent doesn't hit the serve
  3. (countable) If you say someone is an ace at something, they are excellent at it.