Not suprisingly, "OS" can be an acronym for quite a few phrases.
Operating System
Open Source
Open Systems
On Schedule
Old Style
Old School
Online Services
One Side
Overall Survival
On-Site
Off Screen (cinematography)
Outer Space
Out of Stock
Office of the Secretary
Overseas
Office Support
Ordnance Survey
Omaha Steaks (meat company)
Old Style (or Old System; referring to Julian Calendars)
Orlando Sentinel (Orlando, FL newspaper)
Outsourcing Services
Output Status
Austrian Airlines (IATA airline code)
Operational Security
Old Stuff
Ocean Springs (Mississippi)
Oversize
Oliver Stone (director)
Osmium
Orioles (Baltimore baseball team)
Old Spice (after shave brand)
Ocean Shores (Washington)
OS Out-of-Service
Overshoot
Owen Sound (City, Canada)
Off Stage
Ossetian (language identifier; RFC 3066)
On Scene
Over the Shoulder (cinematography)
Oversold (Stock Market)
Oxygen Sensor
Outlaw Star (action-anime)
Only Son
Os Giken (automotive racing parts manufacturer)
Observational Study
Orthopedic Surgeon
Operations Specialist (USN Rating)
Over Speed
Open Sockets (Diablo II gaming)
Optical Scanning
Over Stock
Olympiska Spelen (Swedish: Olympic Games)
Oh Shoot (polite form)
Own Ship
Old Saxon
Oberseminar
Outdoor Skills
Osijek, Croatia (license plate)
Outstation
Organizational Support
Operserv (IRC Operator Server)
Onboard Software
Ocean Surveillance
Ordinary Seaman
Off Scene
Office of Security
Office Superintendent
Obsidian Sanctum (World of Warcraft)
Ordinary Seaman (Canadian naval rank)
Operations Squadron
Order Statistic
Orbital Station
Oculus Sinister (Latin: Left Eye)
Office of Systems
Oil Separator
Output Spy
Office of Sustainability
Operating Standard
Operating Statement
Ohr Somayach (school)
Opening Snap (mitral valve)
Offensive Support
Optical Sight
Ouvrier Spécialisé (French: semi-skilled worker)
Obiettivi Specifici
Open Skies treaty
Officer's Statement (performance evaluation)
Observation Squadron
Operational Suitability
Orthopterists' Society
Object Slice
Operating Strength
Organized Stalking
Optical Silicon (semiconductor chip components)
Over Shield (Halo video game)
Overtime Scheduled
Oblates of Wisdom
Operationalizing the Strategy
Ogawa Shigeo (Engines)
Otm Shank Jazz Quintet (band)
Organic Signal
Orienting Station (surveyed reference location for artillery position)
Ordnance Specification
Operational Superintendence (on overtime forms)
Old Silcoatian (Silcoates School, Wakefield, UK)
(source : acronym finder)
Choose the one that fits with the context where you find the acronym.
Wiki User
∙ 12y agoOperating System
Hewlett-Packard Unix. It is a series of computers that runs the Unix OS. Most people recognize the HP as a computer company in the acronym. This their version with the Unix OS.
OS (or less commonly abbreviated as OOS)
Generally, the acronym OS is an abbreviation for operating system. An operating system is the base program that runs the background programs on a computer.
in Acronym Finder in Acronym Finder
Scalable Disk Array =D Anthony Hopkins - not the actor
The acronym may mean "by us for us" and may be a misstatement of the acronym FUBU.
That is not an acronym in any of the Acronym Dictionaries.
Outside
As an acronym:
Encantado, os, a, as satisfecho, os, a, as alegrado, os, a, as complacido, os, a, as contento, os, a, as
The acronym AQR means Ain't Quite Right.