An expert at something; a maverick, genius; a person owning a "first rank" talent.
A hole in one.
The ball marked with the number 1 in pool and related games.
A perfect score on a school exam.
A dollar bill.
A person who is asexual.
A military aircraft pilot who is credited with shooting down many enemy aircraft, typically five or more.
The best pitcher on the team.
Any of various hesperiid butterflies.
A card or die face so marked.
A single point or spot on a playing card or die normally indicating it as the prime, i.e. first and forefront. (in playing cards, of that series)
A point won by a single stroke, as in handball, rackets, etc.
A very small quantity or degree; a particle; an atom; a jot.
A serve won without the opponent hitting the ball.
Excellent.
Asexual, not experiencing sexual attraction.
To win a point by an ace.
To pass (a test, interviews etc.) perfectly.
To make an ace (hole in one).
A person who may be considered or who considers herself (or by extension himself) much more important than others, has high expectations of others and who is extremely demanding and fussy when it comes to personal privileges.
Any female celebrity, usually a well known singer or actress.