Found 1,035 abbreviations starting with OS:

OS	Old Suisun Miscellaneous » Unclassified
OS	Ole Syversen Miscellaneous » Names and Nicknames
OS	oligosaccharide Medical » British Medicine
OS	Omega Strain Miscellaneous » Unclassified
OS	Omenn syndrome Medical » British Medicine
OS	Omnipotent Spirituality Miscellaneous » Unclassified
OS	OmniSky Business » Firms
OS	On Sea Governmental » Military
OS	On Serotta Miscellaneous » Unclassified
OS	On Service Governmental » Military
OS	On Sheet Business » Accounting
OS	On Station Governmental » Military
OS	On Steroids Miscellaneous » Unclassified
OS	On-orbit Station Governmental » NASA
OS	One Size Miscellaneous » Clothes
OS	Online Service Miscellaneous » Unclassified
OS	Online Services Computing » Networking
OS	Oooh Shizzit Miscellaneous » Unclassified
OS	Open Server Computing » Networking
OS	Open Sockets Computing » Software
OS	Open Source Computing » Software
OS	Open Source Computing » General
OS	Open Space Academic & Science » Architecture
OS	Open Street Business » Stock Exchange
OS	Open System Computing » General

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