norm vs touchstone

norm and touchstone both are nouns.

Word	Noun	Adjective	Verb	Adverb
norm	Yes	No	No	No
touchstone	Yes	No	No	No

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

norm: a standard or model or pattern regarded as typical
touchstone: a basis for comparison; a reference point against which other things can be evaluated

Other hypernyms of norm include criterion, measure, standard.

norm (noun)	touchstone (noun)
a statistic describing the location of a distribution	a basis for comparison; a reference point against which other things can be evaluated
a standard or model or pattern regarded as typical