verifier vs friend

verifier and friend both are nouns.

Word	Noun	Adjective	Verb	Adverb
verifier	Yes	No	No	No
friend	Yes	No	No	No

As nouns, friend is a hypernym of verifier; that is, friend is a word with a broader meaning than verifier:

verifier: someone who vouches for another or for the correctness of a statement
friend: a person who backs a politician or a team etc.

Other hypernyms of verifier include admirer, booster, champion, protagonist, supporter.

verifier (noun)	friend (noun)
someone who vouches for another or for the correctness of a statement	a person you know well and regard with affection and trust
	a person with whom you are acquainted
	an associate who provides cooperation or assistance
	a person who backs a politician or a team etc.