noun
polytheism
PAH-lee-thee-iz-um/ˈpɑːliθiɪzəm/
Belief in or worship of more than one god.
The worshipper practices polytheism by honoring Zeus, Athena, and Poseidon.

Etymology
The roots describe “many gods”; the ending makes this a name for a religious belief. Here “many” means more than one, without specifying a particular number of gods.
In context
Hellenic polytheism is just like any other religion in the sense that these gods are not going to materialize in your room.
More examples
- Our class compares polytheism with belief in a single god.
- In this form of polytheism, each god has a distinct role.
- Her research explores polytheism in ancient Rome.
Forms
polytheism
polytheist noun — A person who believes in multiple gods.
polytheistic adjective — Relating to belief in multiple gods.