| syllogisme | syllogism |
| sylphe | elf |
| sylphide | elf |
| Sylva Koscina | Sylva Koscina |
| sylvain | sylvan |
| Sylvain Arend | Sylvain Julien Victor Arend |
| Sylvain Charles Valée | Sylvain Charles Valée |
| Sylvain Lévi | Sylvain Lévi |
| Sylvain Van de Weyer | Sylvain Van de Weyer |
| Sylvain Wiltord | Sylvain Wiltord |
| Sylvaine | Large Skipper |
| Sylvaner | Silvaner |
| Sylvanus | Silvanus |
| Sylvanus Morley | Sylvanus Morley |
| sylve | forest |
| Sylvebarbe | Treebeard |
| Sylvester | Sylvester James |
| Sylvester Stallone | Sylvester Stallone |
| Sylvester Szmyd | Sylwester Szmyd |
| sylvestre | sylvan |
| Sylvestre Ier | Pope Sylvester I |
| Sylvestre II | Pope Sylvester II |
| Sylvestre III | Pope Sylvester III |
| Sylvestre IV | Antipope Sylvester IV |
| Sylvestre-François Lacroix | Sylvestre François Lacroix |
| Sylvia Beach | Sylvia Beach |
| Sylvia Kristel | Sylvia Kristel |
| Sylvia ou la Nymphe de Diane | Sylvia |
| Sylvia Pankhurst | Sylvia Pankhurst |
| Sylvia Plath | Sylvia Plath |
| Sylvia Scarlett | Sylvia Scarlett |
| Sylvicapra grimmia | Common Duiker |
| sylviculture | forestry |
| Sylvie | Silvia |
| Sylvie Becaert | Sylvie Becaert |
| Sylvie Vartan | Sylvie Vartan |
| Sylviidae | Old World warbler |
| Sylviini | Typical warbler |
| Sylvilagus audubonii | Desert Cottontail |
| Sylvine | Orange Swift |
| Sylvinho | Sylvinho |
| Sylvius Leopold Weiss | Sylvius Leopold Weiss |
| Symantec | Symantec |
| Symbian OS | Symbian OS |
| symbiose | symbiosis |
| symbiotique | symbiotic |
| symbole | sign |
| Symbole astronomique | Astronomical symbols |
| Symbole de Hilbert | Hilbert symbol |
| Symbole de Jacobi | Jacobi symbol |
| Symbole de Kronecker | Kronecker delta |
| Symbole de la paix | Peace symbol |
| Symbole de Legendre | Legendre symbol |
| Symbole de Levi-Civita | Levi-Civita symbol |
| Symbole de Nicée | Nicene Creed |
| Symbole de Pochhammer | Pochhammer symbol |
| Symbole de Schläfli | Schläfli symbol |
| Symbole religieux | Religious symbolism |
| Symbole vexillologique | Flag terminology |
| Symboles de Christoffel | Christoffel symbols |
| Symboles SAMPA | SAMPA chart |
| symbolique | symbolic |
| symboliquement | symbolically |
