Divine rank

Shelyn, Desna, and Sarenrae are powerful goddesses with wide-ranging concerns.

Less powerful deities like Gruhastha, Hei Feng, and Nivi Rhombodazzle are often closer to mortals in nature.

Deities can be defined relative to one another by their divine rank, which reflects their capabilities in a hierarchical manner:

• A god is one of the most powerful deities, with nearly unlimited capability and massive followings. Their power is incomprehensible to mortals.
• A demigod is a powerful deity who is still subserviant or inferior to a god. Their powers might be comprehended by the most powerful mortals, but are unlikely to be challenged except by those on the cusp of divinity themselves.
• A quasi deity is one of the weakest deities, and is typically a newly ascended mortal or powerful native planar being. Their powers are equivalent to, or slightly exceed, the most powerful of mortals.

Other terms can also refer to those who possess some level of deific power, such as exemplar, proto-god, hero-god, and godling. Some of these terms might overlap with each other or a divine rank.

References

Pathfinder First Edition additionally defines a deity's rank by the number of domains they provide. Pathfinder Second Edition does not, and de-emphasizes measurable differences between divine ranks in favor of a more subjective and fluid hierarchy. See Meta:Demigod.

For additional as-yet unincorporated sources about this subject, see the Meta page.