audit vs scrutiny

audit and scrutiny both are nouns.

Word	Noun	Adjective	Verb	Adverb
audit	Yes	No	Yes	No
scrutiny	Yes	No	No	No

As nouns, scrutiny is a hypernym of audit; that is, scrutiny is a word with a broader meaning than audit:

Other hypernyms of audit include examination.

audit (noun)	scrutiny (noun)
a methodical examination or review of a condition or situation	the act of examining something closely (as for mistakes)
an inspection of the accounting procedures and records by a trained accountant or CPA	a prolonged intense look

audit (verb)	scrutiny (verb)
attend academic courses without getting credit
examine carefully for accuracy with the intent of verification