| Biomasse | biomass |
| Biogas | biogas fermentation gas landfill gas |
| Biolyse | biolysis |
| Biopsie | biopsy |
| Biowaffe | bioweapon biological weapon |
| Bromance | bromance |
| Atommasse | atomic mass |
| Erdmasse | earth mass |
| Grimasse | grimace |
| Masse | mass crowd bulk lot ground earth |
| en masse | en masse |
| Bagasse | bagasse |
| Barkasse | launch |
| Blässe | paleness |
| Brasse | bream brass |
| Einsasse | vassal |
| Insasse | passenger resident patient inmate |
| Bosse | bossage |
| Blöße | nudity clearing target |
| Borusse | Prussian |