Initialism of air-conditioning. / (meteorology) Initialism of altocumulus cloud. / Abbreviation of acetate. / Abbreviation of acetyl.

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

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

plural of ace

Third-person singular simple present indicative form of ace

(informal) Alternative form of ace (“excellent”)

(informal) Ace; excellent.

present participle of ace

(in place names) oak.

One affected with. / Of, belonging to.