| sossegar | lessen |
| sossego | calmness |
| sossegote | repose |
| Sossobrar | Flood |
| Sosuke Uno | Sōsuke Uno |
| Sosígenes | Sosigenes of Alexandria |
| Sota | Crown |
| sotaina | cassock |
| sotaque | accent |
| sotaquete | accentle |
| sotavento | lee |
| Sotchi | Sochi |
| Soto | Sōtō |
| Sottens | Sottens |
| Sotto il Monte Giovanni XXIII | Sotto il Monte Giovanni XXIII |
| sotto voce | sotto voce |
| soturnamente | eerily |
| soturno | weird |
| Sotírios Krokidás | Sotirios Krokidas |
| Sotírios Sotirópulos | Sotirios Sotiropoulos |
| sou | am |
| Soujirou Seta | List of Rurouni Kenshin characters |
| souk | souq |
| Souk Ahras | Souk Ahras Province |
| soul | soul |
| Soul Calibur | List of Soul Calibur titles |
| Soul Calibur II | Soulcalibur II |
| Soul Calibur Legends | Soulcalibur Legends |
| Soul Edge | Soul Edge |
| Soul Hunter | Hoshin Engi |
| Soul Society | Soul Society |
| Soulja Boy | Soulja Boy |
| SoulSeek | Soulseek |
| Soum | Soum |
| Sound Asleep EP | Sound Asleep EP |
| Soundgarden | Soundgarden |
| Soundhouse Tapes | The Soundhouse Tapes |
| Soundtrack to the Apocalypse | Soundtrack to the Apocalypse |
| souq | souq |
| Source | Source engine |
| SourceForge | SourceForge |
| Soure | Soure |
| Sourou | Sourou Province |
| sousafone | sousaphone |
| Souss - Massa - Draâ | Souss-Massa-Draâ |
| Sousse | Sousse |
| Sousuke Aizen | Sōsuke Aizen |
| South African Airways | South African Airways |
| South Beach | South Beach |
| South Melbourne FC | South Melbourne FC |
| South of Heaven | South of Heaven |
| South Park | South Park |
| South Yorkshire | South Yorkshire |
| Southampton | Southampton |
| Southern blot | Southern blot |
| Southwark | Southwark |
| souto | copse |
| Soutomaior | Soutomaior |
| SOV | Subject Object Verb |
| sovaco | armpit |
| sovaqueira | B.O. (body odour) |
| sovar | beat |
| Sovata | Sovata |
| sovela | awl |
| sovelate | awletskinflint |
| Sovi | Plumbeous Kite |
| soviete | soviet |
| Soviete Supremo | Supreme Soviet |
| sovietete | sovietskinflint |
| Sovietização | Sovietization |
| sovina | tight |
| sovinate | miser |
| sovinice | illiberality |
