| Singular | singular |
| singulär | singular unique rare |
| Singularis | singular |
| Singularwort | singulare tantum |
| singularisch | singular |
| Singularität | singularity |
| Singularstamm | singular stem |
| Singer | Singer |
| single | single |
| Single | single |
| Singapur | Singapore |
| Singultus | hiccups |
| Sinhala | Sinhala |
| lingual | lingual |
| Cingulum | cincture |
| Lingala | Lingala Ngala |
| regulär | regular |
| Zirkular | circular letter |
| binokular | binocular |
| säkular | secular |