| Semnan | Semnan |
| Semnopithecus | Hulman |
| Semnān Province | Semnan |
| Semois | Semois |
| semolina | semolina |
| Semper fidelis | Semper fidelis |
| Semperoper | Semperoper |
| Sempre Volley | Sempre Volley Padwa |
| Sempron | Sempron |
| Semsales | Semsales |
| Semtex | Semtex |
| Semur-en-Auxois | Semur-en-Auxois |
| Semyon Budyonny | Siemion Budionny |
| Semyon Davidovich Kirlian | Siemion Kirlian |
| Semyon Dezhnyov | Siemion Dieżniew |
| Semyon Furman | Siemion Furman |
| Semyon Krivoshein | Siemion Kriwoszein |
| Semyon Timoshenko | Siemion Timoszenko |
| sen | sen |
| Senafe | Senafe |
| Senarclens | Senarclens |
| senate | senat |
| Senate of Romania | Senat rzymski |
| Senate of the Czech Republic | Izba Poselska |
| Senate of the Republic of Poland | Senat Rzeczypospolitej Polskiej |
| Senate of Uruguay | Senat Urugwaju |
| senator | senator |
| Senbei Norimaki | Jurek Spadkowski |
| Sencha | Sencha |
| send | wysyłać |
| Sendai | Sendai |
| Sendai Airport | Port lotniczy Sendai |
| Sendai virus | Sendai |
| Senden | Senden |
| sender | nadawca |
| sending (over) | przesłanie |
| Senec District | Powiat Senec |
| Seneca | Seneka |
| Seneca County | Hrabstwo Seneca |
| Seneca Falls Convention | Zjazd Kobiet w Seneca Falls |
| Seneca the Elder | Seneka Starszy |
| Seneca the Younger | Seneka Młodszy |
| Senecio vulgaris | Starzec zwyczajny |
| Senedj | Senedż |
| Senegal | Senegal |
| Senegal Bushbaby | Galago senegalski |
| Senegal national football team | Reprezentacja Senegalu w piłce nożnej |
| Senegalese | Senegalczyk |
| Senegambia | Konfederacja Senegambii |
| Senegambia and Niger | Senegambia i Niger |
| Senegambia Confederation | Konfederacja Senegambii |
| Senegambian stone circles | Kamienne kręgi Senegambii |
