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 hole in one.
The ball marked with the number 1 in pool and related games.
An expert at something; a maverick, genius; a person owning a "first rank" talent.
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.
Perfect, flawless, having no defects.
Not actually present, but considered as present when limits at infinity are included.
Optimal; being the best possibility.
Existing only in the mind; conceptual, imaginary.
Pertaining to ideas, or to a given idea.
Teaching or relating to the doctrine of idealism.
A subsemigroup with the property that if any semigroup element outside of it is added to any one of its members, the result must lie outside of it.
A subring closed under multiplication by its containing ring.
A non-empty lower set (of a partially ordered set) which is closed under binary suprema (a.k.a. joins).
A collection of sets, considered small or negligible, such that every subset of each member and the union of any two members are also members of the collection.
A perfect standard of beauty, intellect etc., or a standard of excellence to aim at.
A Lie subalgebra (subspace that is closed under the Lie bracket) 𝖍 of a given Lie algebra 𝖌 such that the Lie bracket [𝖌,𝖍] is a subset of 𝖍.