Acronyms, Abbreviations, and Initialisms.
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The meaning of the Acronym 500BSA is...

500BSA is

  • 500th Bomb Squadron Association World War II

500BSA is also in:

Acronym Definition Searched: N EIB OL 36089 54832 AG NOSP WCFW AOSM TQM PEG 89411 W CRW 9S7