- Sibṭ al-Māridīnī, Badr al-Dīn Muḥammad ibn Muḥammad, 1423- Lumʻah al-Māridīnīyah fī sharḥ al-Yāsamīnīyah2
- Signification (Logic)2
- Solar eclipses2
- Solitude--Religious aspects--Islam2
- Songs, Arabic2
- Songs, Turkish2
- Spiritual life--Islam2
- Stars--Names2
- Sufi literature, Persian2
- Suhrawardī, ʻUmar ibn Muḥammad, 1145-1234. ʻAwārif al-maʻārif2
- Suhrawardīyah2
- Sujāʻī, Aḥmad ibn Aḥmad, -1783? ʻUqūd al-Maqūlāt2
- Sundials2
- Swimming2
- Syriac language2
- Süleyman I, Sultan of the Turks, 1494 or 1495-15662
- Teeth--Care and hygiene2
- Teeth--Religious aspects--Islam2
- Thaqafī, al-Mukhtār ibn Abī ʻUbayd, 622 or 623-687 or 6882
- Therapeutics2