| syre | oxygen |
| syren | lilac |
| Syrena | Syrena |
| syretält | oxygen tent |
| syrgas | oxygen |
| syrgasmask | oxygen mask |
| syrhalt | oxygen content |
| Syria | Syria |
| Syriana | Syriana |
| Syrianer | Syriacs |
| Syrien | Syria |
| Syriens flagga | Flag of Syria |
| Syriens Statsvapen | Coat of arms of Syria |
| syrisk | Syrian |
| Syrisk-katolska kyrkan | Syriac Catholic Church |
| Syrisk-ortodoxa kyrkan | Syriac Orthodox Church |
| Syriska alfabetet | Syriac alphabet |
| Syriskt pund | Syrian pound |
| syrlig | acerbic |
| syrlighet | bitterness |
| syrsa | cricket |
| Syrsor | Cricket |
| syrsätta | oxygenate |
| syrsättning | oxygenation |
| syrsättning av vatten | water aeration |
| syska | woundwort |
| syskon | brothers and sisters |
| Syskonen Baudelaires olycksaliga liv | A Series of Unfortunate Events |
| syskrin | workbasket |
| Syslog | Syslog |
| Sysselmannen på Svalbard | Governor of Svalbard |
| sysselsatt | busy |
| sysselsatthet | busyness |
