| silicio | silicium |
| Silicon Graphics | Silicon Graphics |
| Silicon on insulator | SOI |
| Silicon Valley | Silicon Valley |
| silicona | silikon |
| Siljan | Siljan |
| Silke Möller | Silke Gladisch-Möller |
| Silkeborg IF | Silkeborg IF |
| Silkroad Online | Silkroad Online |
| silla | stol |
| silla de montar | sadel |
| silla de paseo | barnvagn |
| silla de ruedas | rullstol |
| silla eléctrica | elektriska stolen |
| sillería | murverk |
| silleta | bäcken |
| Sillimanita | Sillimanit |
| sillita de paseo | barnvagn |
| sillopín | sadel |
| Silly Symphonies | Silly Symphonies |
| sillín | sadel |
| Silmaril | Silmariller |
| silo | silo |
| silogismo | slutledning |
| Sils im Domleschg | Sils im Domleschg |
| silueta | siluett |
| Siluriformes | Malartade fiskar |
| Silvana Mangano | Silvana Mangano |
| Silvaplana | Silvaplana |
| Silver Surfer | Silversurfaren |
| Silverio | Silverius |
| silvestre | vild |
| Silvestre Antonio Guzmán Fernández | Antonio Guzmán Fernández |
| Silvestre de Sacy | Silvestre de Sacy |
| Silvestre I | Silvester I |
| Silvestre II | Silvester II |
| Silvestre III | Silvester III |
| Silvestre IV | Silvester IV |
| Silvestre Tornasol | Professor Kalkyl |
| Silvia | Sylvia |
| Silvia de Suecia | Drottning Silvia |
| Silvia Saint | Sylvia Saint |
| silvicultura | skogsvetenskap |
| Silvio Berlusconi | Silvio Berlusconi |
| Silvio Gesell | Silvio Gesell |
| Silybum | Mariatistlar |
| Silybum marianum | Mariatistlar |
| silábico | syllabisk |
| silíceo | kiselhaltig |
| Silúrico | Silur |
| sima | avgrund |
| Sima Qian | Sima Qian |
| Simaroubaceae | Bittervedsväxter |
| Simbad | Sinbad Sjöfararen |
| simbiosis | symbios |
| simbiótico | symbiotisk |
| simbolismo | symbolik |
| simbolizar | representera |
| Simbología astronómica | Astronomiska symboler |
| simbólico | symbolisk |
| SimCity | SimCity |
| SimCity Societies | SimCity Societies |
| Sime | Symi |
| Simele massacre | Simelemassakern |
| Simeon Poisson | Siméon Denis Poisson |
| Simetita | Bärnsten |
| Simetría especular | Spegelsymmetri |
| Simeón de Sajonia-Coburgo Gotha | Simeon Sachsen-Coburg-Gotha |
| Simeón I de Bulgaria | Simeon I av Bulgarien |
| Simferopol | Simferopol |
| Simiiformes | Haplorrhini |
| similar | olik |
| similaridad | likhet |
| similarmente | likadant |
| similicuero | konstläder |
| similitud | likhet |
| similor | guldbrons |
| simio | apa |
| Simjat Torá | Simchat Torah |
| Simlish | Simlish |
| SIMM | SIMM |
| Simo Häyhä | Simo Häyhä |
| simon | touché |
| Simon and Garfunkel | Simon and Garfunkel |
| Simon Kuznets | Simon Kuznets |
| Simon Le Bon | Simon Le Bon |
| Simon Marius | Simon Marius |
| Simon Newcomb | Simon Newcomb |
| Simon Stevin | Simon Stevin |
| Simon van der Meer | Simon van der Meer |
| Simon Vouet | Simon Vouet |
| Simon Wiesenthal | Simon Wiesenthal |
| Simona | Simone |
| Simone de Beauvoir | Simone de Beauvoir |
| Simone Martini | Simone Martini |
| Simone Perrotta | Simone Perrotta |
| Simone Weil | Simone Weil |
| simonía | simoni |
| simpatizar | digga |
| simpatía | medlidande |
| simple | ren |
