certify vs licence

certify is not a noun while licence is a noun.

Word	Noun	Adjective	Verb	Adverb
certify	No	No	Yes	No
licence	Yes	No	Yes	No

As verbs, certify and licence are synonyms defined as:

Other synonyms of certify include license.

certify (noun)	licence (noun)
	a legal document giving official permission to do something
	freedom to deviate deliberately from normally applicable rules or practices (especially in behavior or speech)
	excessive freedom; lack of due restraint

certify (verb)	licence (verb)
provide evidence for; stand as proof of; show by one's behavior, attitude, or external attributes	authorize officially
declare legally insane
guarantee payment on; of checks
guarantee as meeting a certain standard
authorize officially