B732
B732 stands for Boeing 737-200 (airliner)
B733
B733 stands for Boeing 737-300 (airliner)
B-B
B-B stands for Breath-by-Breath (oxygen/carbon dioxide transfer)
B-ASICS
B-ASICS stands for Bio-Sensitive Application Specific Integrated Circuits for Smart Sensors in Medical and Environmental Monitoring
B-ASC
B-ASC stands for Bacnet Application Controller
B-BALL
B-BALL stands for Basketball
B-CAOC
B-CAOC stands for Balkan-Combined Air Operations Center
B-CAS
B-CAS stands for BS Conditional Access Systems Co., Ltd. (Japan)
B-CASA
B-CASA stands for Brookline Coalition Against Substance Abuse (est. 2003; Massachusetts)
B-CC
B-CC stands for Bethune-Cookman College (Florida)