| seminary | seminario |
| seminiferous | seminifero |
| Seminol | Seminola |
| Seminole | Seminola |
| Seminole County | Condado de Seminole |
| semiofficial | semioficial |
| semiologist | semiólogo |
| semiology | semiología |
| Semione | Semione |
| semiotics | semiología |
| Semipalatinsk Test Site | Sitio de pruebas de Semipalatinsk |
| semiprecious | semiprecioso |
| semiprecious stone | piedra semipreciosa |
| semiprime | semiprimo |
| semipro | semiprofesional |
| semiprofessional | semiprofesional |
| semiquaver | semicorchea |
| Semiramis | Semíramis |
| Semiregular polyhedra | Sólidos arquimedianos |
| Semiregular polyhedron | Sólidos arquimedianos |
| semirural | semirural |
| semis | semis |
| Semite | semita |
| Semitic | semítico |
| Semitic languages | Lenguas semíticas |
| semitone | semitono |
| semitransparent | semitransparente |
| semitropical | semitropical |
| semivowel | semivocal |
| semiweekly | bisemanal |
| semla | semla |
| Semnan | Provincia de Semnán |
| Semnopithecus | Semnopithecus |
| Semnān Province | Provincia de Semnán |
| semolina | sémola |
| Semonides | Simónides de Amorgos |
| Semperoper | Semperoper |
| Sempre Volley | Padua |
| Sempron | AMD Sempron |
| Semsales | Semsales |
| Semtex | Semtex |
| Semyon Budyonny | Semyon Budyonny |
| Semyon Dezhnyov | Semyon Dezhnev |
| Semyon Lavochkin | Lavochkin |
| Semyon Timoshenko | Semión Timoshenko |
| Sena Jurinac | Sena Jurinac |
| Senarclens | Senarclens |
| senarius | senario |
| Senate | Senado |
| Senate of Barbados | Senado |
| Senate of Brazil | Senado del Brasil |
| Senate of Canada | Senado |
| Senate of France | Senado de Francia |
| Senate of Mexico | Senado de México |
| Senate of Puerto Rico | Senado de Puerto Rico |
| Senate of Romania | Senado de Rumania |
| Senate of the Czech Republic | Elecciones generales de la República Checa |
| Senate of the Republic of Poland | Senat |
| Senate of Uruguay | Cámara de Senadores de Uruguay |
| Senate seniority | Antigüedad de los senadores de los Estados Unidos |
| Senator | senador |
| Senator for life | Senador vitalicio |
| senatorial | senatorial |
| Senatus consultum ultimum | Senatus consultum ultimum |
| Senckenberg Museum | Museo de Senckenberg |
| send | mandar |
| send away | mandar |
| send away for | pedir por correo |
| send back | devolver |
| send by certified mail | certificar |
| send by express | enviar por expreso |
| send by mail | remitir |
| send by registered mail | certificar |
