- Astrology, Turkish2
- Astronomical instruments1
- Astronomy1
- Astronomy, Arab4
- Athīr al-Dīn al-Abharī, al-Mufaḍḍal ibn ʻUmar, -1265. Hidāyat al-ḥikmah1
- Augustine, of Hippo, Saint, 354-4301
- Augustinians3
- Autographs10
- Avatars (Religion)1
- Avodah (Yom Kippur liturgy)1
- Aṣḥāb al-kahf1
- Badr al-Rashīd, Muḥammad ibn Ismāʻīl, -1366. Alfāẓ al-kufr2
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- Bahnasī, ʻAbd al-Wahhāb ibn al-Ḥasan, -1286 or 1287. Naẓm Muthallath Quṭrub1
- Bakrī, Abū al-Ḥasan ibn Jalāl al-Dīn, -approximately 1543. Ḥizb1
- Barbara, Saint1
- Basmalah5
- Bathing customs1
- Bektashi1