Theism: belief in and worship of god(s).
Monotheism: belief in and worship of only one god.
Polytheism: belief in and worship of many gods.
Megatheism: belief that there are multiple gods, but that yours is superior to all others and only They are worthy of worship.
Henotheism: worship of only one god while acknowledging (the possibility of) the existence of others.
Kethenotheism: the worship of only one god at a time.
Monolatrism: the worship of only one god while believing in multiple gods.
Pantheism: belief that the divine is in everything.
Panentheism: belief that the divine is in everything, while also being beyond everything.
Apatheism: being neutral towards the possibility of the existence of god(s).
Atheism: neither believing in nor worshiping god(s).
Antitheism: being actively opposed to the belief in and/or worship of god(s).
Transtheism: a belief system that cannot be easily categorised as either theistic or atheistic.
(Sadly, not the belief that god(s) is/are trans or that trans people are god(s)).Autotheism: belief that divinity is inherently within oneself (may or may not exclude external divinity).
Agnosticism: belief/philosophical position that the divine (and/or whether or not it exists) is unknowable.
Ignosticism: belief/philosophical position that knowledge regarding whether or not god(s) exist is unprofitable.
Deism: belief/philosophical position that God does not interfere directly with the world.
Pandeism: belief that the creator deity became the universe and then ceased to exist as a separate and conscious entity.
Monism: a philosophical position that attributes oneness or singleness to existence.
Dualism: a philosophical doctrine that attributes co-eternal binary opposition to existence.
Omnism: the recognition and respect of all religions.
Panpsychism: belief/philosophical position that consciousness, mind or soul is an intrinsic universal attribute within all things.
Ietism: unspecified belief in an undetermined transcendent force.
Omnibenevolence/eutheism: belief that (a) god is wholly good.
Dystheism: belief that (a) god is not wholly good and may be evil.
Maltheism: belief that (a) god is wholly evil.
(Please correct any false definitions or add new ones to the list.)
A very interesting list. Don’t forget to check the notes for other terms and definition as well.