What does OS stand for?

What does OS mean? This page is about the various possible meanings of the acronym, abbreviation, shorthand or slang term: OS.

We've found a total of 134 definitions for OS:

Filter by: Sort by:PopularityAlphabeticallyCategory
OS

A On Surveillance

Miscellaneous » Unclassified

Rate it:
OS

A Outside System

Miscellaneous » Unclassified

Rate it:
OS

Left eye (oculus sinister)

Medical » Physiology

Rate it:
OS

left eye–oculus sinister

Medical » British Medicine

Rate it:
OS

mouth (os)

Medical » British Medicine

Rate it:
OS

O Sullivan

Community » Famous

Rate it:
OS

obese strain

Medical » British Medicine

Rate it:
OS

Object Summary

Miscellaneous » Unclassified

Rate it:
OS

observational study

Medical » British Medicine

Rate it:
OS

Occulus Sinister

Miscellaneous » Unclassified

Rate it:
OS

occupational safety

Medical » British Medicine

Rate it:
OS

Ocular Sinister

Medical » Physiology

Rate it:
OS

Oculus Sinister

Miscellaneous » Unclassified

Rate it:
OS

Oculus Sinister - Left Eye

Medical » Physiology

Rate it:
OS

Off Screen

Community » Media

Rate it:
OS

Off Site

Business » General

Rate it:
OS

Off-Street parking

Community » Housing

Rate it:
OS

Offentlig Sak

Miscellaneous » Hobbies

Rate it:
OS

office surgery

Medical » British Medicine

Rate it:
OS

Officer Standpoint

Miscellaneous » Unclassified

Rate it:
OS

Oh Shoot

Miscellaneous » Unclassified

Rate it:
OS

Oh Starcraft

Miscellaneous » Science Fiction

Rate it:
OS

Old School

Community » Educational

Rate it:
OS

Old Sebilis

Miscellaneous » Unclassified

Rate it:
OS

Old Shinola

Miscellaneous » Funnies

Rate it:

What does OS mean?

os(noun)
a mouth or mouthlike opening

see more on Definitions.net »

Know what is OS? Got another good explanation for OS? Don't keep it to yourself!

Still can't find the acronym definition you were looking for? Use our Power Search technology to look for more unique definitions from across the web!

Style:MLAChicagoAPA

"OS." Abbreviations.com. STANDS4 LLC, 2015. Web. 5 Jul 2015. <http://www.abbreviations.com/OS>.