treasury vs exchequer

treasury and exchequer both are nouns.

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

As nouns, treasury and exchequer are synonyms defined as:

treasury and exchequer: the funds of a government or institution or individual

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