| Svoboda | Liberty |
| SW | Programska oprema |
| Swabia | Svebi |
| Swadesh list | Swadeshev seznam |
| Swahili | svahilščina |
| Swahili proverbs | Svahilski pregovori |
| swallow | lastovka |
| Swallow tail | Lastovičar |
| Swamee-Jain equation | Darcy-Weisbachova enačba |
| swampy | močviren |
| swan | labod |
| Swan Lake | Labodje jezero |
| Swan River whaler | Beli morski volk |
| swans | labodi |
| Swastica | Svastika |
| Swastika | Svastika |
| SWAT | Special Weapons and Tactics |
| Swaziland | Svazi |
| sweat | znoj |
| Sweater | Jersey |
| Swede | Šved |
| Sweden | Švedska |
| Swedes | Švedi |
| Swedish | švedščina |
| Swedish euro coins | Švedski evrokovanci |
| Swedish Grand Prix | Velika nagrada Švedske |
| Swedish krona | Kronos |
| Swedish licence plates | Registracijske oznake za cestna vozila v Sloveniji |
| Swedish Navy | Vojna mornarica |
| Swedish people | Švedi |
| Swedish proverbs | Švedski pregovori |
| Sweep aside | Odbiti |
| sweepings | smet |
| sweet | sladek |
| Sweet cookie | Lect |
| Sweet corn | Kuruza |
| sweetener | sladilo |
| sweetie | ljubček |
| Sweetness of wine | Sladkost vina |
| sweetshop | slaščičarna |
| Swietenia | Mahagoni |
| swim | plavati |
| swimmer | plaválec |
| swimming pool | bazen |
| Swiss | Švica |
| Swiss Air Force | Luftwaffe |
| Swiss car number plates | Registracijske oznake za cestna vozila v Sloveniji |
| Swiss franc | Švicarski frank |
| Swiss Grand Prix | Velika nagrada Švice |
| Swiss Guard | Švicarska garda |
| Swiss-born | Švica |
| Switzerland | Švica |
| sword | meč |
| swordfish | sabljarka |
| Swotch on | Pospeševati |
| Swung note | Svingerstvo |
| SY | SY |
| sybarite | sibarit |
| Syberia | Sibirija |
| sycamore maple | beli javor |
| Syd Barrett | Syd Barrett |
| Sydney | Sydney |
| Sydney Harbour Bridge | Sydneyjski pristaniški most |
| Sydney Opera House | Sydneyska operna hiša |
| Sydney Smith | Sydney Smith |
| Sydney Tower | Sydney Tower |
| syllable | zlog |
| Sylvain Julien Victor Arend | Sylvain Julien Victor Arend |
| Sylvanus Morley | Sylvanus Griswold Morley |
| Sylvester | Sylvester |
| Symbian OS | Symbian OS |
| symbiosis | simbioza |
| symbol | znak |
| symbolize | simbolizirati |
| symmetry | simetrija |
| Symphonie | Simfonija |
| symphony | simfonija |
| Symphony X | Symphony X |
| Symptom | Simptom |
| synagogue | sinagoga |
| Synapsida | Sesalci |
| Synchronous rotation | Sočasno vrtenje |
| Syndicate | Sindikat |
| syndrome | sindrom |
| synecology | sinekologija |
| Synergetics | Sinergija |
| Synesthesia | Sinestetičnost |
| Synodic period | Orbitalna perioda |
| Synonym | Sopomenka |
| Syntax | Skladnja |
| Synth | Sintetizator |
| Synth pad | Pad |
| Synthesizer | Sintetizator |
| syphilis | sifilis |
| Syracusa | Sirakuze |
| Syracuse | Sirakuze |
| Syrena | Sirena |
| Syria | Sirija |
| Syriac | Sirščina |
| Syriac alphabet | Sirska abeceda |
| Syriac language | Sirščina |
| Syrian | Sirščina |
| Syrian Arab Republic | Sirija |
| Syrian pound | Sirski funt |
| syrup | sírup |
| system | sistem |
| System of government | Dijeta |
| System of law | Pravo |
| Systema | Sistem |
| Systema Naturae | Sistematika |
| Systematics | Sistematika |
| Systems of measurement | Stare uteži in mere |
| Sz | SZ |
| Szarvas | Jeleni |
| Szczecin | Szczecin |
| Szentgotthárd | Monošter |
| Szlachta | šlahta |
| Szydłowiec | Šydloviéc |
| Szymon of Lipnica | Sveti Simon iz Lipnice |
| Sávio | Sávio |
| São Paulo | São Paulo |
| São Paulo Futebol Clube | São Paulo |
| São Pedro | Sveti Peter |
| São Tomé | Apostol Tomaž |
| São Tomé and Príncipe | Sao Tome in Principe |
| São Tomé Island | Sao Tome in Principe |
| Sälen | Selen |
| Sète | Sète |
| Sèvre Nantaise | Sèvre Nantaise |
| Sèvre Niortaise | Sèvre Niortaise |
| Sèvres | Sèvres |
| Sénégal River | Senegal |
| Sócrates | Sokrat |
| Sømna | Sømna |
| Sør-Odal | Sør-Odal |
