veto vs exclude

veto is a noun but exclude is not a noun.

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

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

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

veto (noun)	exclude (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)	exclude (verb)
command against	prevent from being included or considered or accepted
vote against; refuse to endorse; refuse to assent	prevent from entering; keep out
	put out or expel from a place
	prevent from entering; shut out
	lack or fail to include