| SE star | Estrella SE |
| sea | mar |
| sea anchor | ancla arrastradiza |
| sea anemone | anémona de mar |
| Sea Arrowgrass | Triglochin maritima |
| sea bass | lubina |
| sea bird | ave marina |
| sea bream | besugo |
| sea breeze | brisa de mar |
| sea captain | capitán de marina |
| sea cow | vaca marina |
| Sea cucumber | Holothuroidea |
| Sea cucumbers | Holothuroidea |
| sea gull | gaviota |
| sea holly | cardo de mar |
| sea horse | caballo marino |
| sea ice | banquisa |
| sea lamprey | lamprea marina |
| Sea legs | Pie marino |
| sea level | nivel del mar |
| sea lily | lirio de mar |
| sea lion | león marino |
| Sea Lion Island | Isla de los Leones Marinos |
| sea mile | milla náutica |
| Sea mine | Mina marina |
| Sea Mink | Mustela macrodon |
| Sea Monsters | Sea Monsters |
| Sea nettle | Chrysaora quinquecirrha |
| Sea of Azov | mar de Azov |
| Sea of Galilee | Mar de Galilea |
| Sea of Japan | Mar del Japón |
| Sea of Japan naming dispute | Disputa sobre el nombre del mar del Japón |
| Sea of Love | Melodía de seducción |
| Sea of Marmara | Mar de Mármara |
| Sea of Marmora | Mar de Mármara |
| Sea of Okhotsk | Mar de Ojotsk |
| Sea of Rhûn | Mar de Rhûn |
| Sea Otter | Enhydra lutris |
| Sea Peoples | Pueblos del Mar |
| sea perch | róbalo |
| Sea surface temperature | Temperatura de la superficie del mar |
| Sea traffic | Navegación marítima |
| sea turtle | tortuga marina |
| sea urchin | erizo de mar |
| sea voyage | viaje por mar |
| sea wall | rompeolas |
| sea water | aguas marinas |
| sea wind | brisa de mar |
| Sea-bream | Dorado |
| Sea-lavender | Limonium |
| sea-level | nivel del mar |
| Sea-Monkey | Artemia salina |
| Sea-nymph | Sirena |
| Sea-piece | Marina |
| Sea-water | Agua sala |
| seabed | lecho del mar |
| Seabee | Seabee |
| seabird | albatros |
| Seabiscuit | Alma de héroe |
| seaboard | costa |
| seaborgium | seaborgio |
| Seabrook Station Nuclear Power Plant | Central nuclear de Seabrook |
| seafarer | marinero |
| seafaring | marinero |
| seafaring man | marinero |
| seafood | mariscos |
| seafood chowder | sopa de pescado |
| seafowl | ave marina |
| seafront | paseo marítimo |
| Seagate Technology | Seagate |
| seagoing | de alta mar |
| Seagram Building | Edificio Seagram |
| seagull | gaviota |
| Seahorse | Hippocampus |
| seal | sello |
| Seal of American Samoa | Sello de Samoa Americana |
| seal of approval | aprobación |
| Seal of Arizona | Sello de Arizona |
| Seal of Guam | Sello de Guam |
| Seal of Idaho | Sello de Idaho |
| Seal of Indiana | Sello de Indiana |
| Seal of Kentucky | Sello de Kentucky |
| Seal of Louisiana | Sello de Louisiana |
| Seal of Maryland | Sello de Maryland |
| Seal of Nevada | Sello de Nevada |
| Seal of New Jersey | Sello de Nueva Jersey |
| Seal of New York City | Sello de la Ciudad de Nueva York |
| Seal of Ohio | Sello de Ohio |
| Seal of quality | Compañía discográfica |
| Seal of the District of Columbia | Sello del Distrito de Columbia |
| Seal of the Northern Mariana Islands | Sello de las Islas Marianas del Norte |
| Seal of Washington | Sello de Washington |
| Sealand | Sealand |
| Sealand national football team | Selección de fútbol de Sealand |
| sealant | sellador |
| sealed | cerrado |
| Sealed orders | Pliego cerrado |
| sealer | sellador |
| sealing wax | lacre |
| sealskin | piel de foca |
| seam | veta |
| seaman | marinero |
| seamanship | náutica |
| Seamark | Faro |
| seamless | sin costuras |
| seamount | monte marino |
| seamstress | modista |
| Seamus Heaney | Seamus Heaney |
| seamy | con costuras |
| Sean | Sean Matsuda |
| Sean Astin | Sean Astin |
| Sean Bean | Sean Bean |
| Sean Combs | Diddy |
| Sean Connery | Sean Connery |
| Sean Paul | Sean Paul |
| Sean Penn | Sean Penn |
| Sean Young | Sean Young |
| seaplane | hidroavión |
| seaport | puerto marítimo |
| Seaports of the Valencian Community | Puertos de la Comunidad Valenciana |
| seaquake | maremoto |
| SeaQuest DSV | SeaQuest DSV |
| sear | soasar |
| search | registrar |
| search engine | buscador |
| search for | buscar |
| search party | equipo de salvamento |
| search through | registrar |
| search warrant | mandamiento de registro |
| searcher | visor |
| searching | minucioso |
| searchlight | reflector |
| Seares | Lacio |
| searing | ardiente |
| Searly | Lacio |
| Sears Tower | Torre Sears |
| seashell | concha |
| seashore | costa |
| seasick | mareado |
| seasickness | mareo |
| seaside | costa |
| season | estación |
| season ticket | abono |
| seasonable | oportuno |
