| second hand | andrahands- |
| second hand buy | andrahandsköp |
| Second Industrial Revolution | Andra industriella revolutionen |
| Second Intermediate Period of Egypt | Andra mellantiden |
| Second International | Andra internationalen |
| Second Intifada | Al-Aqsa-intifadan |
| Second Italo-Abyssinian War | Abessinienkriget |
| Second law of thermodynamics | Entropiprincipen |
| second lieutenant | fänrik |
| Second Life | Second Life |
| Second Macedonian War | Andra makedoniska kriget |
| Second Matabele War | Andra Matabelekriget |
| second name | efternamn |
| second nature | andra natur |
| second of arc | bågsekund |
| Second Opium War | Andra opiumkriget |
| Second Punic War | Andra puniska kriget |
| Second Republic | Andra franska republiken |
| Second Rzhev-Sychevka Offensive | Operation Mars |
| Second Schleswig War | Dansk-tyska kriget |
| Second Servile War | Andra slavkriget |
| Second Sino-Japanese War | Andra sino-japanska kriget |
| Second Spanish Republic | Andra spanska republiken |
| second stomach | nätmage |
| Second Swedish Crusade | Andra svenska korståget |
| Second Vatican Council | Andra Vatikankonciliet |
| Second Viennese School | Andra Wienskolan |
| Second World | öst |
| Second World War | Andra världskriget |
| second-best | näst bäst |
| second-class | sekunda |
| second-class ticket | andraklassbiljett |
| second-degree | andra gradens |
| second-degree murder | dråp |
| second-hand | andrahands- |
| second-hand buy | andrahandsköp |
| second-hand information | andrahandsuppgift |
| second-hand smoke | passiv rökning |
| second-rate | sekunda |
| secondary | obetydlig |
| secondary education | sekundärundervisning |
| Secondary education in France | Collège |
| secondary matter | bisak |
| secondary school | högstadium |
| secondhand | andrahands- |
| secondhand buy | andrahandsköp |
| secondly | för det andra |
| seconds | backning |
| secrecy | sekretess |
| Secrecy of letter | Posthemlighet |
| secret | förtrolig |
| secret agent | hemlig agent |
| Secret Army | Hemliga armén |
| secret code | chiffer |
| secret documents | hemliga dokument |
| secret funds | mutfond |
| Secret Garden | Secret Garden |
| Secret Gospel of Mark | Hemliga Markusevangeliet |
| secret information | hemlig information |
| Secret Intelligence Service | Secret Intelligence Service |
| secret motive | baktanke |
| secret of the heart | hjärtats hemlighet |
| Secret passage | Lönndörr |
| secret police | hemlig polis |
| secret service | säkerhetspolis |
| Secret State Police | Gestapo |
| secret storage | gömställe |
| secret store | gömställe |
| secret voting | sluten omröstning |
| Secret Window | Secret Window |
| secretarial | sekreterar- |
| secretariat | sekretariat |
| Secretariat of State | Vatikanens statssekretariat |
| secretary | skrivbord |
| Secretary General | generalsekreterare |
| Secretary of State | utrikesminister |
| Secretary of State for Foreign and Commonwealth Affairs | Storbritanniens utrikesminister |
| secretary-general | generalsekreterare |
| secrete | avsöndra |
| secretion | sekret |
| secretive | hemlighetsfull |
| secretiveness | förtegenhet |
| secretly | hemligt |
| Secrets of Women | Kvinnors väntan |
| sect | sekt |
| sectarian | sekterisk |
| sectarianism | sekterism |
| section | avdelning |
| section sign | paragraftecken |
| sectional | sektions- |
| Sectional steel | Konstruktionsstål |
| sectioning | uppdelning |
| sector | avsnitt |
| Sector model | Sektorsmodellen |
| secular | världslig |
| Secular coming of age ceremony | Sekulär konfirmation |
| Secular confirmation | Humanistisk konfirmation |
| secularism | sekularism |
| secularize | sekularisera |
| Securable | Erlangen |
| secure | belägga |
| Secure Digital card | Secure Digital |
| secured | stadig |
| securely | säkert |
| securing | säkring |
| Securing screw | Skruv |
| Securitas | Securitas |
| Securitas AB | Securitas |
| Securitate | Securitate |
| securities | värdepapper |
| security | borgen |
| security check | säkerhetskontroll |
| Security cracking | Crackare |
| security guard | säkerhetsvakt |
| security measure | säkerhetsåtgärd |
| security officer | säkerhetsvakt |
| security reason | säkerhetsskäl |
| security risk | säkerhetsrisk |
| Security Service | säkerhetstjänst |
| security system | säkerhetssystem |
| Seda | Silke |
| sedan | sedan |
| sedan chair | bärstol |
| sedate | stillsam |
| sedation | behandling med lugnande medel |
| sedative | lugnande |
