Answer:
Beliving in multiple religion
Explanation:
If we take out "Theism" from "Polytheism" then we have "Poly". The word poly typically means more than 1, and the defenition stays the same when we add "Theism" to the end of it.
Religion and gods are a complete different thing, though gods do sometimes come in a religion, religions are beliefs about lots of things, like what day is best (just an example) and what food should only be eaten on a specific day, while believing in more than one god just means a god.
