adjective, adverb
- Informal. OK; perfect: an A-OK rocket launching.
adjective
- informal, mainly US in perfect working order; excellent
1961, said to be an abbreviation of all (systems) OK; popularized in the jargon of U.S. astronauts. See OK.
adjective, adverb
adjective
1961, said to be an abbreviation of all (systems) OK; popularized in the jargon of U.S. astronauts. See OK.