confirm vs sanction

confirm is not a noun while sanction is a noun.

Word	Noun	Adjective	Verb	Adverb
confirm	No	No	Yes	No
sanction	Yes	No	Yes	No

As verbs, sanction is a hypernym of confirm; that is, sanction is a word with a broader meaning than confirm:

Other hypernyms of confirm include approve, O.K., okay.

confirm (noun)	sanction (noun)
	the act of final authorization
	a mechanism of social control for enforcing a society's standards
	official permission or approval
	formal and explicit approval

confirm (verb)	sanction (verb)
make more firm	give sanction to
establish or strengthen as with new evidence or facts	give religious sanction to, such as through an oath
strengthen or make more firm	give authority or permission to
administer the rite of confirmation to
support a person for a position