| Bastnäsit | bastnaesite |
| Fastnacht | Shrove Tuesday carnival Shrovetide |
| Bastardin | bastard |
| Bastelei | bricolage |
| Bastlerin | hobbyist |
| Basalt | basalt |
| Basmati | basmati |
| Bassin | pool basin |
| Bassist | bass singer double bass player bassist bass guitarist bass player |
| Bastard | bastard crossbreed hybrid mongrel |
| Bastian | Bastian |
| Bastonade | bastinado |
| basta | enough |
| Astatin | astatine |
| Besanmast | mizzenmast |
| Kastrat | castrato |
| Nastaliq | Nastaliq |
| Altlast | contaminated waste hazardous waste contaminated land contaminated site |
| Anastasia | Anastasia Anastace Anastacia Anastase Anastasha Anastashia |
| Astat | astatine |