| segmenter | segment |
| Segni | Segni |
| Segnosaurus | Segnosaurus |
| Segovie | Segovia |
| Segrià | Segrià |
| Seguia el-Hamra | Saguia el-Hamra |
| Segundo Castillo | Segundo Castillo |
| Segura | Segura |
| Segway PT | Segway PT |
| Sei Shōnagon | Sei Shōnagon |
| Seibal | Seibal |
| Seibu Lions | Seibu Lions |
| seiche | squid |
| Seiche commune | Common Cuttlefish |
| Seif el Islam Kadhafi | Saif al-Islam al-Gaddafi |
| seigle | rye |
| Seigneur | Lord |
| seigneur de la guerre | warlord |
| Seigneur de lumière | Lord of Light |
| Seigneur de Man | Lord of Mann |
| Seigneur des pirates | One Piece terms |
| Seigneur terrien | Lord |
| seigneurial | manorial |
| seigneurie | fiefdom |
| Seigneurie de Rama | Lordship of Ramla |
| Seigneurie du Gibelet | Embriaco family |
| Seigneux | Seigneux |
| Seigo Narazaki | Seigo Narazaki |
| Seiichi Itō | Seiichi Itō |
| Seiichiro Maki | Seiichiro Maki |
| Seiji Ozawa | Seiji Ozawa |
| Seijin shiki | Seijin shiki |
| Seiken densetsu | Seiken Densetsu |
| Seimas | Seimas |
| Seimu | Emperor Seimu |
| sein | bosom |
| seine | seine |
| Seine-et-Marne | Seine-et-Marne |
| Seine-et-Oise | Seine-et-Oise |
| Seine-Maritime | Seine-Maritime |
| Seine-Saint-Denis | Seine-Saint-Denis |
| Seinei | Emperor Seinei |
| Seinen | Seinen |
| Seinfeld | Seinfeld |
| seins | breasts |
| seismographe | seismograph |
| seismologiste | seismologist |
| Seismosaurus | Seismosaurus |
| Seiun award | Seiun Award |
| Seiurus | Seiurus |
| Seiwa | Emperor Seiwa |
| Seixal | Seixal |
| Seiya | Pegasus Seiya |
| Seiyū | Seiyū |
| Seiza | Seiza |
| seize | sixteen |
| Seize bougies pour Sam | Sixteen Candles |
| Seize Royaumes | Sixteen Kingdoms |
| seizième | sixteenth |
| Sejenane | Sedjenane |
| Sejm | Sejm |
| Sejong le Grand | Sejong the Great of Joseon |
| Sekhmet | Sekhmet |
| Sekiryo Kaneda | Sekiryo Kaneda |
| Sekondi Hasaacas | Sekondi Hasaacas FC |
| Sekouba Bambino | Sekouba Bambino |
| Sekyere ouest | Sekyere West District |
| sel | salt |
| sel alimentaire | salt |
| sel d'épandage | road salt |
| sel de cuisine | salt |
| sel de céleri | celery salt |
| sel de la Terre | salt of the earth |
| sel de table | salt |
| Sel iodé | History of iodised salt |
| sel marin | sea salt |
| Selaginella lepidophylla | Selaginella lepidophylla |
| Selam | Selam |
