vociferator vs talker

vociferator and talker both are nouns.

Word	Noun	Adjective	Verb	Adverb
vociferator	Yes	No	No	No
talker	Yes	No	No	No

As nouns, talker is a hypernym of vociferator; that is, talker is a word with a broader meaning than vociferator:

vociferator: a loud and vehement speaker (usually in protest)
talker: someone who expresses in language; someone who talks (especially someone who delivers a public speech or someone especially garrulous)

Other hypernyms of vociferator include speaker, utterer, verbaliser, verbalizer.

vociferator (noun)	talker (noun)
a loud and vehement speaker (usually in protest)	someone who expresses in language; someone who talks (especially someone who delivers a public speech or someone especially garrulous)