| sinnfrei | meaningless senseless absurd futile mindless pointless |
| Innerei | innards |
| zinsfrei | interest-free |
| Sinnieren | musing |
| sinnieren | ponder |
| sinnen | reflect |
| Inneres | bowel inside |
| innere | inward |
| sündenfrei | sinless |
| salzfrei | saltfree |
| staffrei | scot-free |
| Kinderei | childishness |
| Sinai | Sinai |
| Sinekure | sinecure |
| Singer | Singer |
| Sinken | decline |
| sinken | sink |
| Sinnes- | sensuous |
| Sintern | sintering |
| sintern | sinter bake coalesce slag vitrify |