: a playing card with one large figure in its center that can be the card with either the highest or lowest value
: a person who is very skilled at something
: a point scored on a serve that an opponent fails to hit in tennis
: to earn a very high grade on (an examination) : to get a grade of A on (an examination) : to perform very well on (a test or challenge)
: to score an ace against (an opponent in tennis)
: to score an ace on (a hole in golf)
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