visa vs endorse

visa is a noun but endorse is not a noun.

Word	Noun	Adjective	Verb	Adverb
visa	Yes	No	Yes	No
endorse	No	No	Yes	No

As verbs, endorse is a hypernym of visa; that is, endorse is a word with a broader meaning than visa:

Other hypernyms of visa include indorse.

visa (noun)	endorse (noun)
an endorsement made in a passport that allows the bearer to enter the country issuing it

visa (verb)	endorse (verb)
provide (a passport) with a visa	sign as evidence of legal transfer
approve officially	be behind; approve of
	guarantee as meeting a certain standard
	give support or one's approval to