| swordfish | zwaardvis |
| swordsman | zwaardvechter |
| swot | blokker |
| SWOT analysis | Sterkte-zwakteanalyse |
| SWsoft | Plesk |
| SWX Swiss Exchange | Swiss Exchange |
| SY | Sy |
| Syagrius | Syagrius |
| Syagrus romanzoffiana | Syagrus romanzoffiana |
| Syas River | Sjas |
| Syasstroy | Sjasstroj |
| Sybaris | Sybaris |
| sybarite | sybariet |
| sybaritic | sybaritisch |
| Syberia | Siberië |
| Sybill Trelawney | Sybilla Zwamdrift |
| Sybilla de Normandy | Sybilla van Normandië |
| Sybille Bammer | Sybille Bammer |
| Sybille de Selys Longchamps | Sybille de Selys-Longchamps |
| Sybrandabuorren | Sijbrandaburen |
| sycamore | plataan |
| sycamore maple | gewone esdoorn |
| sycophancy | pluimstrijkerij |
| sycophant | kruiper |
| sycophantic | kruiperig |
| Sycorax | Sycorax |
| Syców | Syców |
| Syd Barrett | Syd Barrett |
| Sydals | Sydals |
| Sydfalster | Sydfalster |
| Sydlangeland municipality | Sydlangeland |
| Sydney | Sydney |
| Sydney FC | Sydney FC |
| Sydney Harbour Bridge | Sydney Harbour Bridge |
| Sydney Harbour National Park | Nationaal park Sydney Harbour |
| Sydney Olympic FC | Sydney Olympic FC |
| Sydney Opera House | Sydney Opera House |
| Sydney Pollack | Sydney Pollack |
| Sydney Tamiia Poitier | Sydney Tamiia Poitier |
| Sydney Tower | Sydney Tower |
| Sydney United | Sydney United |
| Sydower Fließ | Sydower Fließ |
| Sydthy municipality | Sydthy |
| Syens | Syens |
| Syke | Syke |
| Sykes-Picot Agreement | Sykes-Picotverdrag |
| Sykkylven | Sykkylven |
| Syktyvkar | Syktyvkar |
| Syldavia | Syldavië |
| Sylhet | Sylhet |
| Sylhet Division | Sylhet bibhag |
| syllabic | syllabisch |
| syllable | syllabe |
| Syllable weight | Booglengte |
| syllabub | sabayon |
| syllabus | syllabus |
| syllogism | syllogisme |
