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What does OS3 stand for? 

What does OS3 mean? This page is about the various possible meanings of the acronym, abbreviation, shorthand or slang term: OS3.

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OS3

Operations Specialist Petty Officer 3rd Class

Governmental » Navy

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OS3

Officer's Steward 3rd Class (non Petty Officer)

Governmental » Navy

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Couldn't find the full form or full meaning of OS3?

Maybe you were looking for one of these abbreviations:

OS-JTF - OS/2 - OS/360 - OS1 - OS2 - OSA - OSAA - OSAAS - OSAB - OSAC

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    DNAR
    A Does Not Accept Resuscitation
    B Do Not Attempt Resuscitation
    C Does Not Agree with Resuscitation
    D Did Not Attempt Resuscitation

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