ace
n//eɪs//ess, äss, etta, serveäss
(card games) A playing card showing a single pip, typically the highest or lowest ranking card in a game.
(dice) A die face marked with a single dot, typically representing the number one.
(tennis, volleyball) A serve won without the opponent hitting the ball.
(sometimes, _, attributive) An expert at something; a maverick, genius; a person of supreme talent.
A military aircraft pilot who is credited with shooting down many enemy aircraft, typically five or more.