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o/a

1.
on or about.
Dictionary.com Unabridged
Based on the Random House Dictionary, © Random House, Inc. 2014.
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Related Abbreviations for o-a

o/a

on or about
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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