ACE

noun

1. A single point or spot on a playing card or die.
2. A card or die face so marked.
3. The ball marked with the number 1 in pool and related games.

verb

1. (US) To pass (a test, interviews etc.) perfectly.
2. To win a point by an ace.
3. To make an ace (hole in one).

adjective

1. Excellent.