What's the difference between allotheism and polytheism?

Allotheism

Definition:

• (n.) The worship of strange gods.

Example Sentences:

Polytheism

Definition:

• (n.) The doctrine of, or belief in, a plurality of gods.

Example Sentences:

• (1) He rejected what he saw as pagan accretions introduced by bid’a (innovation) and shirk (idolatry or polytheism), which detracts from the absolute transcendence of God.