veto vs enjoin

veto is a noun but enjoin is not a noun.

Word	Noun	Adjective	Verb	Adverb
veto	Yes	No	Yes	No
enjoin	No	No	Yes	No

As verbs, enjoin is a hyponym of veto; that is, enjoin is a word with a more specific, narrower meaning than veto:

Other hyponyms of veto include ban, bar, debar, exclude, criminalise, criminalize, illegalise, illegalize, outlaw.

veto (noun)	enjoin (noun)
a vote that blocks a decision
the power or right to prohibit or reject a proposed or intended act (especially the power of a chief executive to reject a bill passed by the legislature)

veto (verb)	enjoin (verb)
command against	give instructions to or direct somebody to do something with authority
vote against; refuse to endorse; refuse to assent	issue an injunction