| Acronym | Definition |
|---|
| BR➣Bedroom |
| BR➣Brown |
| BR➣Best Regards |
| BR➣Brasil/Brazil (top level domain) |
| BR➣Bairro (Portuguese postal use) |
| BR➣Blu-ray (Disc) |
| BR➣Branch |
| BR➣Brother |
| BR➣Bari (postal region, Somalia) |
| BR➣Break (HTML) |
| BR➣Battle Royale (Japanese movie) |
| BR➣British Rail |
| BR➣Boca Raton (Florida) |
| BR➣Britain |
| BR➣Baton Rouge |
| BR➣Blade Runner (movie) |
| BR➣Brass |
| BR➣Basic Research |
| BR➣British Railways (company) |
| BR➣Business Registration |
| BR➣Banana Republic (clothing store) |
| BR➣Baltimore Ravens (professional football team; Maryland) |
| BR➣Blue Ridge |
| BR➣Bayerischer Rundfunk (Southern German Radio Station) |
| BR➣Bit Rate |
| BR➣Mist (Meteorological Report) |
| BR➣Bromine |
| BR➣Bohemian Rhapsody |
| BR➣Babe Ruth (baseball player) |
| BR➣Broker Reciprocity (real estate) |
| BR➣Baskin Robbins (ice cream stores) |
| BR➣Blood Rayne (video game) |
| BR➣Blonde Redhead (band) |
| BR➣Book of Reference |
| BR➣Biological Research |
| BR➣Black Reign (TNA iMPACT gaming wrestler) |
| BR➣Build Report |
| BR➣Bad Religion (band) |
| BR➣Batman Returns (1992 movie) |
| BR➣Bromley (postcode, United Kingdom) |
| BR➣Bloody Roar (video game) |
| BR➣Biosphere Reserve (various locations) |
| BR➣Bundesrat (Austrian Parlamentary Institution) |
| BR➣Bedrest |
| BR➣Blackburn Rovers |
| BR➣Black Adder |
| BR➣Boilermaker (USN Rating) |
| BR➣Bottle Rockets (band) |
| BR➣Batch Reactor (chemical reactor where volume is constant and the contents are well-mixed) |
| BR➣Bacteriorhodopsin |
| BR➣Bank Roll |
| BR➣Battle Rifle (gaming, Halo) |
| BR➣Bend Radius (cable flexibility) |
| BR➣Battle Realms (PC game) |
| BR➣Birth Rate |
| BR➣Bong Rip |
| BR➣Bangladesh Railway |
| BR➣Bills Receivable |
| BR➣Biological and Radiological |
| BR➣Blue Rodeo (band) |
| BR➣Bats Right (baseball) |
| BR➣Budget Report |
| BR➣Business Register |
| BR➣Base Register |
| BR➣Butadiene Rubber (polybutadiene rubber) |
| BR➣Blockade Runner (game) |
| BR➣Budget Review (US DoD) |
| BR➣Boys Rule |
| BR➣Bible Review |
| BR➣Brigate Rosse (Italian Terrorist Group) |
| BR➣Bharat Rakshak |
| BR➣Petrobrás Distribuidora (Brazil) |
| BR➣Bureau of Reclamation |
| BR➣Batch Record (pharmaceutical product recipe) |
| BR➣Bandwidth Request |
| BR➣Bathroom Reader |
| BR➣Bombing Run (Unreal Tournament 2003 game mode) |
| BR➣Blackground Records (record label) |
| BR➣Burlington Resources (energy company; Texas) |
| BR➣Battery Return |
| BR➣Business Roundtable |
| BR➣Beam Rifle (anime, Mobile Suit Gundam) |
| BR➣Backbone Router |
| BR➣Beam Rider (US DoD) |
| BR➣Business Release |
| BR➣Brindisi, Puglia (Italian province) |
| BR➣Broad Ripple (Indiana) |
| BR➣Radiocommunication Bureau |
| BR➣Boundary Representation |
| BR➣Binary Restenosis |
| BR➣Breeder Reactor |
| BR➣Background Rhythm |
| BR➣Bellevue Reporter (community newspaper) |
| BR➣Burst Rate (data communications) |
| BR➣Bad Register |
| BR➣Bidirectional Ring |
| BR➣Bridleway (UK planning & zoning) |
| BR➣Baloch Regiment (Pakistan) |
| BR➣Business Result |
| BR➣Eva Airways Corporation (IATA airline code) |
| BR➣Banco Reformador |
| BR➣Builder's Risk |
| BR➣Buffer Register |
| BR➣Breastroke (swimming) |
| BR➣Brigade de Recherche (French: Research Brigade) |
| BR➣Banque de la Réunion (French: Bank of Reunion) |
| BR➣Business Reform |
| BR➣Break Rate |
| BR➣Brother Rat |
| BR➣Bomber Reconnaissance |
| BR➣Banlieue Rouge (Quebec punk band) |
| BR➣Bâtiment Réacteur (French: Reactor Building) |
| BR➣Butadiene Resin |
| BR➣Bitte Rücksprache (German: Please Contact) |
| BR➣Buddy Ride |
| BR➣Bottom Reflection |
| BR➣Blade Rate |
| BR➣Buffalo Regals |
| BR➣Break Relay |
| BR➣Backward Reporting |
| BR➣Bridgewire Resistance |
| BR➣Bahama Route |
| BR➣Bloc Réacteur (French: Reactor Unit) |
| BR➣Battle Rezz (gaming) |
| BR➣Brandenberger+Ruosch AG |
Br - a nonmetallic heavy volatile corrosive dark brown liquid element belonging to the halogens; found in sea water