Theism is broadly defined as the belief in the existence of the Supreme Being or deities. In common parlance, or when contrasted with deism, the term often describes the classical conception of God that is found in monotheism (also referred to as classical theism) - or gods found in polytheistic religions—a belief in God or in gods without the rejection of revelation as is characteristic of deism.
Most of the polytheistic deities of ancient religions, with the notable exceptions of the Ancient Egyptian and Hindu deities, were conceived as having physical bodies. Polytheism is a type of theism. Within theism, it contrasts with monotheism, the belief in a singular God, in most cases transcendent.