ace - noun

the smallest whole number or a numeral representing this number

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

someone who is dazzlingly skilled in any field

proteolytic enzyme that converts angiotensin I into angiotensin II

a major strategic headquarters of NATO; safeguards an area extending from Norway to Turkey

a serve that the receiver is unable to reach

ace - verb

• succeed at easily
• score an ace against
• play (a hole) in one stroke
• serve an ace against (someone)

ace - adjective

• of the highest quality

ace - thesaurus

adept   champion   crack   genius   hotshot   maven   mavin   nail   one   sensation   single   star   super   superstar   tiptop   topnotch   tops   unity   virtuoso   whiz   whizz   wiz   wizard