finances vs treasury

finances and treasury both are nouns.

Word	Noun	Adjective	Verb	Adverb
finances	Yes	No	No	No
treasury	Yes	No	No	No

As nouns, treasury is a hyponym of finances; that is, treasury is a word with a more specific, narrower meaning than finances:

finances (noun)	treasury (noun)
assets in the form of money	a depository (a room or building) where wealth and precious objects can be kept safely
	the government department responsible for collecting and managing and spending public revenues
	the funds of a government or institution or individual