A-O. K.

A-OK

[ey-oh-key]
adjective, adverb
Informal. OK; perfect: an A-OK rocket launching.
Also, A-O.K., A-Okay.


Origin:
1955–60

Dictionary.com Unabridged
Based on the Random House Dictionary, © Random House, Inc. 2014.
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Collins
World English Dictionary
A-OK or A-okay
 
adj
informal chiefly (US) in perfect working order; excellent
 
[C20: from a(ll systems) OK]
 
A-okay or A-okay
 
adj
 
[C20: from a(ll systems) OK]

Collins English Dictionary - Complete & Unabridged 10th Edition
2009 © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins
Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009
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Etymonline
Word Origin & History

A-OK
1961, abbreviation of all (systems) OK, originally in the jargon of astronauts. See OK.
Online Etymology Dictionary, © 2010 Douglas Harper
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American Heritage
Abbreviations & Acronyms
A-OK
in perfect condition or order
The American Heritage® Abbreviations Dictionary, Third Edition
Copyright © 2005 by Houghton Mifflin Company.
Published by Houghton Mifflin Company. All rights reserved.
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