spiritual world vs spiritual domain

spiritual world and spiritual domain both are nouns.

Word	Noun	Adjective	Verb	Adverb
spiritual world	Yes	No	No	No
spiritual domain	Yes	No	No	No

As nouns, spiritual world and spiritual domain are synonyms defined as:

spiritual world and spiritual domain: a belief that there is a realm controlled by a divine spirit

Other synonyms of spiritual world include unseen.

spiritual world (noun)	spiritual domain (noun)
a belief that there is a realm controlled by a divine spirit	a belief that there is a realm controlled by a divine spirit