theology vs bailiwick

theology and bailiwick both are nouns.

Word	Noun	Adjective	Verb	Adverb
theology	Yes	No	No	No
bailiwick	Yes	No	No	No

As nouns, bailiwick is a hypernym of theology; that is, bailiwick is a word with a broader meaning than theology:

theology: the rational and systematic study of religion and its influences and of the nature of religious truth
bailiwick: a branch of knowledge

Other hypernyms of theology include discipline, field, field of study, study, subject, subject area, subject field.

theology (noun)	bailiwick (noun)
the learned profession acquired by specialized courses in religion (usually taught at a college or seminary)	a branch of knowledge
a particular system or school of religious beliefs and teachings	the area over which a bailiff has jurisdiction
the rational and systematic study of religion and its influences and of the nature of religious truth