| sine | seno |
| sinecure | sinecura |
| sinew | nervo |
| sinewy | fibroso |
| Sinfjötli | Sinfjötli |
| Sinfonia concertante | Sinfonia concertante |
| sinful | peccaminoso |
| sing | cantare |
| Sing for the Moment | Sing for the Moment |
| sing loudly | cantare ad alta voce |
| sing psalms | salmeggiare |
| sing softly | canticchiare |
| sing the praises of | cantare le lodi |
| Sing the Sorrow | Sing the Sorrow |
| singable | cantabile |
| Singapore | Singapore |
| Singapore Airlines | Singapore Airlines |
| Singapore dollar | Dollaro di Singapore |
| Singapore Grand Prix | Gran Premio di Singapore |
| Singapore national football team | Nazionale di calcio di Singapore |
| Singapore Street Circuit | Singapore |
| singe | scottare |
| Singen | Singen |
| singer | cantante |
| Singer professional | Cantatrice |
| singer-songwriter | cantautore |
| Singidunum | Singidunum |
| singing | canto |
| Singing birds | Oscines |
| singings | canti |
| single | solo |
| single bed | letto singolo |
| Single coil | Single coil |
| single combat | certàme |
| single cylinder | monocilindrico |
| Single Euro Payments Area | SEPA |
| Single European Act | Atto unico europeo |
| Single European Payments Area | SEPA |
| single handed | solitario |
| single lane | a senso unico |
| Single Minute Exchange of Die | SMED |
| Single nucleotide polymorphism | Polimorfismo a singolo nucleotide |
| single out | scegliere |
| single phase | monofase |
| Single photon emission computed tomography | Tomografia ad emissione di fotone singolo |
| Single player | Giocatore singolo |
| single room | càmera sìngola |
| Single sign-on | Single sign-on |
| single ticket | biglietto sémplice |
| single transferable vote | voto singolo trasferibile |
| single-breasted | a un petto |
| single-engine aeroplane | monomotore |
| single-family dwelling | villino monofamiliare |
| single-family home | villino monofamiliare |
| single-handed | da solo |
| Single-Handed Trans-Atlantic Race | Transatlantica in solitario |
| Single-lens reflex camera | Single Lens Reflex |
| single-minded | risoluto |
| Single-player | Giocatore singolo |
| single-seater | monoposto |
| Single-system image | Single-system image |
