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

RBNU is

  • Rooms Booked And Not Used

RBNU is also in:

Acronym Definition Searched: SHOES 58357 SWEF 65486 SADD ACFS SSS Y CANI RMT SOW STAA 38926 GLW PSSS