protest vs swear

protest is a noun but swear is not a noun.

Word	Noun	Adjective	Verb	Adverb
protest	Yes	No	Yes	No
swear	No	No	Yes	No

As verbs, swear is a hypernym of protest; that is, swear is a word with a broader meaning than protest:

Other hypernyms of protest include affirm, assert, aver, avow, swan, verify.

protest (noun)	swear (noun)
the act of protesting; a public (often organized) manifestation of dissent
a formal and solemn declaration of objection
the act of making a strong public expression of disagreement and disapproval

protest (verb)	swear (verb)
utter words of protest	have faith or confidence in
affirm or avow formally or solemnly	make a deposition; declare under oath
express opposition through action or words	utter obscenities or profanities
	promise solemnly; take an oath
	to declare or affirm solemnly and formally as true