| Briefkasten | mailbox postbox collection box drop box letter box letter-box |
| Briefkastenonkel | advice columnist |
| Briefkastentante | advice columnist |
| Briefkastenfirma | shell corporation |
| Bierkasten | beer crate crate of beer |
| Brotkasten | breadbox bread bin |
| Brutkasten | incubator |
| Leierkasten | barrel organ |
| Hausbriefkasten | letterbox |
| Postbriefkasten | letterbox |
| Briefbogen | letter sheet |
| Briefbote | mailman postman letter carrier mail carrier postal carrier |
| Briefbotin | letter carrier |
| Briefchen | banknote |
| Briefmarke | stamp postage stamp |
| Briefpapier | letter paper |
| Brieftasche | wallet |
| Brieftaube | carrier pigeon homing pigeon homer racing homer racing pigeon |
| Briefwaage | letter scale letter balance |
| briefen | brief |