| summer | poletje |
| Summer Olympic Games | Poletne olimpijske igre |
| Summer Triangle | Poletni trikotnik |
| Summertide | Poletni čas |
| sun | sonce |
| Sun Country Airlines | SY |
| Sun King | Sončni kralj |
| Sun tanning | Rjavina |
| Sun Tzu | Sun Cu |
| Sun- | Sonce |
| Sunda Isles | Sonda |
| Sundance Film Festival | Sundance festival |
| Sunday | nedelja |
| Sunday school | Katekizem |
| Sundays | Nedelja |
| Sundering of the Elves | Eldarji |
| sundial | sónčna úra |
| sunflower | sončnica |
| Sunshine State | Florida |
| Sunspot | Sončeva pega |
| Suomen kieli käyttöön | Materni jezik |
| Super Giant Slalom skiing | Super-G |
| Supercomputer | Superračunalnik |
| Superconduction | Superprevodnost |
| Superconductivity | Superprevodnost |
| superhighway | avtocesta |
| superlative degree | preséžnik |
| Superman | Superman |
| supermassive black hole | supermasivna črna luknja |
| supernova | supernova |
| Supernovas | Supernova |
| Superparamagnetism | Superparamagnetizem |
| superstitious | praznoveren |
| Superstring theory | Teorija superstrun |
| Supineness | Vztrajnost |
| supply | ponudba |
| supply and demand | ponudba in povpraševanje |
| Support and resistance | Upor |
| Support vector machine | Metoda podpornih vektorjev |
| Supreme Being | Bog |
| Sur | Jug |
| sura | sura |
| Suresnes | Suresnes |
| Surface activity | Površinska napetost |
| Surface condenser | Kondenzator |
| surface tension | površinska napetost |
| Surface to Surface Missile | Balistični izstrelek |
| Surface-effect craft | Ekranoplan |
| Surface-to-surface missile | SLBM |
| Surgeon | Kirurgija |
| surgery | kirurgija |
| Surgical oncology | Onkološka kirurgija |
| Surinam | Surinam |
| Suriname | Surinam |
| Suriname River | Surinam |
| Surjective function | Surjektivna preslikava |
| surname | priimek |
| Surplus-value | Presežna vrednost |
| Surrealism | Nadrealizem |
| Surtees | Surtees |
| Survival skills | Strelstvo |
| Survival training | Strelstvo |
| Surya | Surja |
| Susa | Sousse |
| Susanoo | Susanovo |
| Suscribe to | Abonirati se |
| sushi | suši |
| suspect | sumiti |
| Susquehanna River | Susquehanna |
| Sustainable agriculture | Ekološko kmetijstvo |
| Suva | Suva |
| Suzuka Circuit | Suzuka Circuit |
| Sućuraj | Sućuraj |
| SV | SV |
