| Acronym | Definition |
|---|
| RB➣Red Bull (energy beverage) |
| RB➣Running Back (football) |
| RB➣Rose Bowl (college football game) |
| RB➣Replaced By |
| RB➣Rock Band (video game) |
| RB➣Reckitt Benckiser (UK) |
| RB➣Really Bad |
| RB➣Right Back (soccer position) |
| RB➣Rechtbank (Courthouse) - Belgium |
| RB➣Redondo Beach (California) |
| RB➣Regionalbahn (German: local train) |
| RB➣Red Bluff (California) |
| RB➣Rubidium |
| RB➣Radio Broadcasting |
| RB➣Rancho Bernardo (California) |
| RB➣Review Board |
| RB➣Radio Button |
| RB➣Rehoboth Beach (Delaware) |
| RB➣Rainbow Brite (80's cartoon) |
| RB➣Raging Bull (amusement park ride) |
| RB➣Recycle Bin |
| RB➣Radio Bremen (German Radio and TV Station) |
| RB➣Rock Bottom |
| RB➣Radio Band |
| RB➣Read Back (logging abbreviation) |
| RB➣Retinoblastoma Protein |
| RB➣Rubber Band |
| RB➣Reflec Beat (game) |
| RB➣Regional Business |
| RB➣Root Beer |
| RB➣Roll Back |
| RB➣Red Border |
| RB➣Base Resistance (transistors) |
| RB➣Roast Beef |
| RB➣Reduced Bore (valves) |
| RB➣Relay Box (various companies) |
| RB➣Rankin-Bass (animation company) |
| RB➣REALBasic (REAL Software Inc.) |
| RB➣Reactor Building |
| RB➣Reconnaissance Bomber |
| RB➣Ratebeer.com (website) |
| RB➣Rio Bravo |
| RB➣Robert Bosch GmbH (auto industry supplier) |
| RB➣Rhinoceros Beetle |
| RB➣Right Brain |
| RB➣Recovery Block |
| RB➣Rainbow Bridge |
| RB➣Regular Budget |
| RB➣Rx Bandits (band) |
| RB➣Round Ball (muzzleloader shooting) |
| RB➣Right Bumper (Xbox 360 controller button) |
| RB➣Radar Beacon (aircraft navigation aid) |
| RB➣Raffel Brothers (founders of Arby's) |
| RB➣Recommended Buy (US DoD; Defense Logistics Agency) |
| RB➣Rose Bengal |
| RB➣Syrian Arab Airlines (IATA airline code) |
| RB➣Rescue Boat |
| RB➣Reachback |
| RB➣Registered Builder (various locations) |
| RB➣Reticulate Body (Chlamydia) |
| RB➣Retirement Benefit(s) |
| RB➣Reclamation Board |
| RB➣Republic of Bulgaria |
| RB➣Relative Bearing |
| RB➣Radio Bearing |
| RB➣Reentry Body |
| RB➣Rauland-Borg Corporation (Skokie, Illinois) |
| RB➣Revenue Budget (various states) |
| RB➣Robot Battle (game) |
| RB➣Richard Blackwood (MTV UK and Ireland presenter) |
| RB➣Righteous Babe |
| RB➣Republic of Bashkortostan (region in Russian Federation) |
| RB➣Rob Bourdon (Linkin Park drummer) |
| RB➣Request for Bid |
| RB➣Resolution Bandwidth |
| RB➣Run Balanced (Front Page Sports Football '95 et al) |
| RB➣Realbot (Counter-Strike program) |
| RB➣Repetition Blindness |
| RB➣Responsible Body |
| RB➣RockBoard (video game) |
| RB➣Ribbon Bridge |
| RB➣Right Bench (stream/river) |
| RB➣Myredbook.com (social network website) |
| RB➣Resurrection Blvd (TV show) |
| RB➣Rice Bug |
| RB➣Relocatable Buildings |
| RB➣Resistance Brazing |
| RB➣Registerbank (assembly language ASM51 assembler control) |
| RB➣Race Breed (automotive) |
| RB➣Rotary Beacon |
| RB➣Rinse Blank (water run over equipment that is analyzed to check for cross contamination) |
| RB➣Relay Broadcast |
| RB➣Ringwood Brewery (UK) |
| RB➣Repasz Band (Williamsport, PA) |
| RB➣Radiation Belt Mapper (Mission) |
| RB➣Residue Beamwidth |
| RB➣Ringgold Band (Reading, PA) |
| RB➣Restbreak |
| RB➣Radiator Bending |
| RB➣US Revenue Proprietary (Scott Catalogue prefix; philately) |
| RB➣Ravana Brothers |
| RB➣Rohrersville Band (Rohrersville, MD) |
| RB➣Reached Bottom Time (diving) |
Rb - a soft silvery metallic element of the alkali metal group; burns in air and reacts violently in water; occurs in carnallite and lepidolite and pollucite