license vs sanction

license and sanction both are nouns.

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

license (noun)	sanction (noun)
the act of giving a formal (usually written) authorization	the act of final authorization
a legal document giving official permission to do something	a mechanism of social control for enforcing a society's standards
freedom to deviate deliberately from normally applicable rules or practices (especially in behavior or speech)	official permission or approval
excessive freedom; lack of due restraint	formal and explicit approval

license (verb)	sanction (verb)
authorize officially	give sanction to
	give religious sanction to, such as through an oath
	give authority or permission to