Scrabble?! ACE

Definitions of ACE in various dictionaries:

noun - the smallest whole number or a numeral representing this number

noun - one of four playing cards in a deck having a single pip on its face

noun - someone who is dazzlingly skilled in any field

noun - proteolytic enzyme that converts angiotensin I into angiotensin II

noun - a major strategic headquarters of NATO

noun - a serve that the receiver is unable to reach

verb - succeed at easily

verb - score an ace against

verb - play (a hole) in one stroke

verb - serve an ace against (someone)

adj - of the highest quality

Games.

A single spot or pip on a playing card, die, or domino.

A playing card, die, or domino having one spot or pip.

Sports.

A serve that one’s opponent fails to return.

A point scored by such a serve.

The act of hitting a golf ball in the hole with one’s first shot.

A military aircraft pilot who has destroyed five or more enemy aircraft.

Topnotch; first-rate.

To serve an ace against.

To hit an ace in golf.

Slang.

To receive a grade of A on: She aced the exam.

verb - to score a point against in a single stroke