| Singularis | singular |
| singularisch | singular |
| Singular | singular |
| singulär | singular unique rare |
| Singularität | singularity |
| Singultus | hiccups |
| Singularwort | singulare tantum |
| Sindarin | Sindarin |
| Sinusitis | sinusitis |
| Simulatin | malingerer |
| Säkularist | secularist |
| Sinai | Sinai |
| Singapurer | Singaporean |
| Singapurerin | Singaporean |
| Singer | Singer |
| Singhalese | Sinhalese |
| Singhalesin | Sinhalese |
| Singleton | singleton |
| Sinologin | sinologist |
| Sinusoid | sinusoid |