ace

A playing card with one mark, worth one or the highest value, depending on the game.

• I drew an ace.
• She held two aces in her hand.
• Does an ace count as one in this game?

Common phrases: ace of spades, ace of hearts, draw an ace

A serve in tennis that wins a point because the other player does not touch the ball.

• She served an ace.
• His final ace won the match.
• How many aces did you hit today?

Common phrases: serve an ace, hit an ace, another ace

Someone who is extremely good at a particular activity.

• He is an ace at maths.
• Our computer ace fixed the problem.
• The young tennis ace won another tournament.

How to use it: an ace at something (She is an ace at solving puzzles.)

Similar words: expert, whiz

Common phrases: an ace at, computer ace, tennis ace, ace detective

A military pilot who has shot down many enemy aircraft, usually at least five.

• The pilot became a fighter ace.
• Several aces served in that squadron.
• The museum displays the medals of a wartime ace.

Common phrases: fighter ace, flying ace, wartime ace