| signet | Siegel |
| signetring | Siegelring |
| signifikans | Bedeutung |
| signifikant | bedeutend |
| Signoria | Signoria |
| Signumfunktionen | Signum |
| Signy-Avenex | Signy-Avenex VD |
| Sigourney Weaver | Sigourney Weaver |
| Sigrid | Sigrid |
| Sigrid Storråda | Sigrid die Stolze |
| Sigrid Undset | Sigrid Undset |
| Sigriswil | Sigriswil |
| Sigrun | Sigrun |
| Sigtuna | Sigtuna |
| Sigtuna kommun | Sigtuna |
| Sigulda | Sigulda |
| Sigur Rós | Sigur Rós |
| Sigurd | Sigurd |
| Sigurd Fafnesbane | Siegfried |
| Sigurd Hoel | Sigurd Hoel |
| Sigurimi | Sigurimi |
| Sigurjón Birgir Sigurðsson | Sjón |
| Sigvard Bernadotte | Sigvard Bernadotte |
| Sigyn | Sigyn |
| Sihanoukville | Sihanoukville |
| Siheung | Siheung |
| Sihl | Sihl |
| SIIC | Oberster Islamischer Rat im Irak |
| Siikais | Siikainen |
| Siirt | Siirt |
| sik | Felchen |
| Sikahjort | Sikahirsch |
| Sikaner | Sikanen |
| Sikar | Coregonus |
| sikel | Sekel |
| Sikeler | Sikeler |
| sikh | Sikh |
| sikh- | Sikh |
| Sikhism | Sikhismus |
| Sikkim | Sikkim |
| Siklós | Siklós |
| siklöja | Kleine Maräne |
| Sikorsky | Sikorsky Aircraft Corporation |
| sikt | Durchschlag |
| sikta | sieben |
| sikta mot | anvisieren |
| sikta till | etwas anpeilen |
| siktbarhet | Klarheit |
| sikte | Ziel |
| Sikth | SikTh |
| siktighet | Klarheit |
| siktning | Sieben |
| siktväxel | Tratte |
| Siku | Sieper |
| sil | Durchschlag |
| SIL International | SIL International |
| sila | abgießen |
| Silan | Silane |
| Silang | Silang |
| Silbo Gomero | El Silbo |
| SILC | SILC |
| Sildenafil | Sildenafil |
| Silener | Silen |
| Silent Hill | Silent Hill |
| Silenus | Silen |
| sileshår | Sonnentau |
| silhuett | Silhouette |
| silicium | Silizium |
| siliciumchips | Siliziumchip |
| Silicon Graphics | Silicon Graphics |
| Silicon Valley | Silicon Valley |
| Siliguri | Shiliguri |
| silikat | Silikat |
| Silikatmineral | Silikate |
| silikon | Silikon |
| silikos | Silikose |
