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90s Slang You Should Know

O.S.1

or o.s

1.
(in prescriptions) the left eye.
Origin of O.S.1
From the Latin word oculus sinister

O.S.2

1.
Old Saxon.
2.
Old School.
3.
Old series.
4.
(of the calendar) Old Style.
5.
Also, o.s. ordinary seaman.
Dictionary.com Unabridged
Based on the Random House Dictionary, © Random House, Inc. 2017.
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Examples from the Web for O.S.
Historical Examples
  • He was born, as he himself tells us, on the 24th of September 1717 O.S.

    English Book Collectors William Younger Fletcher
British Dictionary definitions for O.S.

o.s.

abbreviation
1.
out of stock
2.
(banking) outstanding
Collins English Dictionary - Complete & Unabridged 2012 Digital Edition
© William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins
Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012
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