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 127 definitions for OS:

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Acronym

Definition

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OS

Open Source

Computing » Software -- and more...

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OS

OStium (mouth)

Medical » Physiology

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OS

Old School

Community » Educational

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OS

Ordnance Survey

Governmental » Military -- and more...

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OS

Online Services

Computing » Networking

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OS

Outer Space

Governmental » NASA

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OS

Old Skool

Governmental » Military

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OS

Open System

Computing » General

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Os

Osmium

Academic & Science » Chemistry -- and more...

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OS

One Size

Miscellaneous » Clothes

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OS

Overall Survival

Medical » Oncology -- and more...

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OS

O Sullivan

Community » Famous

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OS

On Service

Governmental » Military

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OS

On Sea

Governmental » Military

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OS

Off Screen

Community » Media

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OS

Online Service

Miscellaneous » Unclassified

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OS

Open Server

Computing » Networking

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OS

Off Site

Business » General

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OS

Other Source

Governmental » FBI Files

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OS

Other Specifications

Governmental » Military

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OS

Oral Surgery

Medical » Physiology

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OS

Oxygen Saturation

Medical » Physiology

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OS

Operations System

Computing » Telecom

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OS

Organizzazioni Sindacali

International » Italian

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OS

On Station

Governmental » Military

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What does OS mean?

os(noun)
a mouth or mouthlike opening

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"OS." Abbreviations.com. STANDS4 LLC, 2016. Web. 31 May 2016. <http://www.abbreviations.com/OS>.