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o.s.
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Tweet abbr. 1. Latin oculus sinister (left eye) 2. old series 3. or o/s out of stock |
The American Heritage® Dictionary of the English Language, Fifth Edition copyright ©2022 by HarperCollins Publishers. All rights reserved.
OS
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Tweet abbr. 1. or O/S Old Style 2. operating system 3. ordinary seaman |
The American Heritage® Dictionary of the English Language, Fifth Edition copyright ©2022 by HarperCollins Publishers. All rights reserved.
