(communication, electronics) Initialism of adjacent channel selectivity. / (medicine) Initialism of acute coronary syndrome. / (medicine) Initialism of acute compartment syndrome.

(Australia) Initialism of Australian Computer Society. / (Australia) Initialism of Australian Customs Service. / (Singapore) Initialism of Anglo-Chinese School.

plural of AC

plural of ac

plural of ace of aces

(military) The greatest active flying ace in a nation's military service.

(US) To pass (a test, interviews etc.) perfectly. / (tennis) To win a point by an ace. / (golf) To make an ace (hole in one).

(card games, dice games) A single point or spot on a playing card or die normally indicating it as the prime, i.e. first and forefront. (in playing cards, of that series)

(UK, slang) Excellent.

(slang) A person who is asexual.