The meaning of the Acronym RB is...

RB is

• Room Booking

More Meanings For RB:

• Rubidium
• Rubidium
• Resistance Barrier
• Rubberized Base
• Rigid Body
• Revenue Book
• Room Booking
• Rob Berridge
• Red Baron (Rittmeister Baron von Richtofen)
• Room and Board
• Rubber Bullet
• Requires Bind
• Rubber Ball
• Running Back
• Record Book

RB is also in:

• Accounting
• Chemistry
• Electronics
• Famous
• General
• Housing
• Law
• Media
• Physics
• Sports