auditor vs comptroller

auditor and comptroller both are nouns.

Word	Noun	Adjective	Verb	Adverb
auditor	Yes	No	No	No
comptroller	Yes	No	No	No

As nouns, comptroller is a hypernym of auditor; that is, comptroller is a word with a broader meaning than auditor:

auditor: a qualified accountant who inspects the accounting records and practices of a business or other organization
comptroller: someone who maintains and audits business accounts

Other hypernyms of auditor include accountant, controller.

auditor (noun)	comptroller (noun)
a qualified accountant who inspects the accounting records and practices of a business or other organization	someone who maintains and audits business accounts
someone who listens attentively
a student who attends a course but does not take it for credit