/ ˌeɪ əʊ ˈkeɪ; NAmE ˌeɪ oʊ ˈkeɪ/ adjective , adverb
( NAmE , informal ) in good condition; in an acceptable manner :
Everything's A-OK now.
The party went off A-OK.
••
WORD ORIGIN
1960s (originally an astronauts' term): from a ll systems OK .
/ ˌeɪ əʊ ˈkeɪ; NAmE ˌeɪ oʊ ˈkeɪ/ adjective , adverb
( NAmE , informal ) in good condition; in an acceptable manner :
Everything's A-OK now.
The party went off A-OK.
••
WORD ORIGIN
1960s (originally an astronauts' term): from a ll systems OK .
Oxford Advanced Learner's English Dictionary. Оксфордский английский словарь для изучающик язык на продвинутом уровне. 2005