Acronyms, Abbreviations, and Initialisms.
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The meaning of the Acronym OS2 is...

OS2 is

  • Operating System/2

OS2 is also in:

Acronym Definition Searched: VECOP VTEC ACTFAST EJTAG WMB 30645 RMU CSAC PEG SICPS AS MKS 63872 AHI SFC