| synthetics | produits synthétiques |
| Synthon | Synthon |
| Synthpop | Synthpop |
| syntonic | syntone |
| Syntonic comma | Comma syntonique |
| Syphax | Syphax |
| syphilis | syphilis |
| syphilitic | syphilitique |
| syphon | siphon |
| Syr Darya | Syr-Daria |
| Syracuse | Syracuse |
| Syracuse Chiefs | Syracuse Chiefs |
| Syracuse Crunch | Crunch de Syracuse |
| Syracuse Orange | Syracuse University Orange |
| Syre | Syre |
| Syreeta Wright | Syreeta Wright |
| Syrena | Sirène |
| Syria | Syrie |
| Syria national football team | Équipe de Syrie de football |
| Syria-Lebanon Campaign | Campagne de Syrie |
| Syriac alphabet | Alphabet syriaque |
| Syriac Catholic Church | Église catholique syriaque |
| Syriac Orthodox Church | Église syriaque orthodoxe |
| Syrian | Syrien |
| Syrian Arab Republic | Syrie |
| Syrian Desert | Desert de Syrie |
| Syrian Hamster | Hamster doré |
| Syrian nationalism | Nationalisme syrien |
| Syrian pound | Livre syrienne |
| Syrian Social Nationalist Party | Parti social nationaliste syrien |
| Syrian Wars | Guerres de Syrie |
| Syriana | Syriana |
| Syringa vulgaris | Syringa vulgaris |
| syringe | poire |
| Syrma | Syrmie |
| Syrmia | Syrmie |
| Syro-Malabar Catholic Church | Église catholique syro-malabare |
| Syro-Malankara Catholic Church | Église catholique syro-malankare |
| Syros | Syros |
| Syrtos | Syrtos |
| syrup | mélasse |
| syrupy | siropeux |
| sysadmin | administrateur systèmes |
| Sysert | Syssert |
| SYSLINUX | Syslinux |
| Syslog | Syslog |
| sysop | sysop |
| SysRq | Touche Syst |
| Syssitia | Syssitie |
| system | méthode |
| System console | Corbeau |
| System fault tolerance | Copie papier |
| System of a Down | System of a Down |
