divinity vs subject area

divinity and subject area both are nouns.

Word	Noun	Adjective	Verb	Adverb
divinity	Yes	No	No	No
subject area	Yes	No	No	No

As nouns, subject area is a hypernym of divinity; that is, subject area is a word with a broader meaning than divinity:

divinity: the rational and systematic study of religion and its influences and of the nature of religious truth
subject area: a branch of knowledge

Other hypernyms of divinity include bailiwick, discipline, field, field of study, study, subject, subject field.

divinity (noun)	subject area (noun)
the quality of being divine	a branch of knowledge
the rational and systematic study of religion and its influences and of the nature of religious truth
white creamy fudge made with egg whites
any supernatural being worshipped as controlling some part of the world or some aspect of life or who is the personification of a force