Tawḥīd is commonly translated as Islāmic Monotheism. Conventionally, it is, “to single out Allāh in His Rubūbiyyah (Lordship), Ulūhiyyah (worship), Names, Attributes and Judgement.” – Ibn Bāz, Majmūʿ al-Fatāwá (1/34)
In the sub-menu, you may view the following sub-categories:
Tawḥīd al-Rubūbiyyah (Oneness of Allāh in His Lordship)
Tawḥīd al-ʿUbūdiyyah (Oneness of Allāh in His Worship)
Tawḥīd al-Asmāʿ wa-al-Ṣifāt (Oneness of Allāh in His Names and Attributes)
Comprehensive Study – Detailed Analysis of Tawḥīd