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).
One who has an extremely high level of ability or knowledge within an area of achievement or expertise.
Someone who has previously been a master at a given lodge.