Definition of ace-high:
(n) :
(card games) A playing card showing a single pip, typically the highest or lowest ranking card in a game.
(n) :
(tennis, volleyball) A serve won without the opponent hitting the ball.
(n) :
(sometimes attributive) An expert at something; a maverick, genius; a person of supreme talent.
(n) :
(US) A perfect score on a school exam.
(n) :
(dice games) A die face marked with a single dot, typically representing the number one.
(n) :
The ball marked with the number 1 in pool and related games.