B736
B736 stands for Boeing 737-600 (airliner)
B4S
B4S stands for Bound for Success (Australian education program)
B4U
B4U stands for Before You B4U stands for Bollywood for You (cable television channel) B4U stands for Business for Users
B4TB
B4TB stands for Break for the Border (band)
B4UG
B4UG stands for Before You Go
B4Y
B4Y stands for Business for Youth
B4YKI
B4YKI stands for Before You Know It
B5
B5 stands for Babylon 5
b5R
b5R stands for Cytochrome b5 Reductase
B6ZS
B6ZS stands for Bipolar with 6 Zero Substitution