monetary system vs touchstone

monetary system and touchstone both are nouns.

Word	Noun	Adjective	Verb	Adverb
monetary system	Yes	No	No	No
touchstone	Yes	No	No	No

As nouns, touchstone is a hypernym of monetary system; that is, touchstone is a word with a broader meaning than monetary system:

monetary system: anything that is generally accepted as a standard of value and a measure of wealth in a particular country or region
touchstone: a basis for comparison; a reference point against which other things can be evaluated

Other hypernyms of monetary system include criterion, measure, standard.

monetary system (noun)	touchstone (noun)
anything that is generally accepted as a standard of value and a measure of wealth in a particular country or region	a basis for comparison; a reference point against which other things can be evaluated