Acronyms, Abbreviations, and Initialisms.
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The meaning of the Acronym 5N9 is...

5N9 is

  • Montauk Seaplane Base, Montauk, New York USA

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Acronym Definition Searched: BFP HFC PLUC FU AFCB 03609 LIM OIB 13092 KK EM ABES 79843 JD WTFH