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

OPSO is

  • On Public Service Only

OPSO is also in:

Acronym Definition Searched: HG 67204 ARF WMP NFAR ETV WEVC SHR FUBAR YME 63548 TIQ 39041 NJE HD