Informal. OK; perfect:
an A-OK rocket launching.
And with that return, a confirmation: Facebook users, middle names are A-OK in Zuckerville.
Facebook Deactivates Salman Rushdie’s Profile, Makes Him Use ‘Ahmed’ Brian Ries November 14, 2011
Even Patrick Dempsey, who plays Dr. Derek Shepherd, would be A-OK with the series coming to an end.
Pull the Plug on ‘Grey’s Anatomy’ Anna Brand August 15, 2013
(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.
Proceeding or functioning properly; giving no cause for worry; copacetic, go: Your X rays are A-OK
: The plan’s going A-OK (1960s+ Space travel)
in perfect condition or order
Administration on Aging. Administration on Aging American Optometric Association analysis of alternatives angle of attack
aoard Asian Office of Aerospace Research and Development
aoasm American Osteopathic Academy of Sports Medicine
abbreviation any other business alcohol on breath