| Struma | goitre |
| Strunk | stalk |
| Strom | current torrent stream |
| Strumpf | stocking sock mantle |
| stramm | taut tight |
| Trumm | lump whopper debris |
| Utrum | common gender |
| Serum | serum |
| Satsuma | mikan satsuma |
| Trauma | trauma |
| Ostrava | Ostrava |
| Str. | St. |
| Straf- | punitive |
| Strang | skein string cordon canal |
| Strebe | brace strut |
| Streuer | caster |
| Strg | Ctrl |
| Strick | noose cord |
| Strieme | weal |
| Stroh- | straw |