stentor vs verbalizer

stentor and verbalizer both are nouns.

Word	Noun	Adjective	Verb	Adverb
stentor	Yes	No	No	No
verbalizer	Yes	No	No	No

As nouns, verbalizer is a hypernym of stentor; that is, verbalizer is a word with a broader meaning than stentor:

stentor: a speaker with an unusually loud voice
verbalizer: someone who expresses in language; someone who talks (especially someone who delivers a public speech or someone especially garrulous)

Other hypernyms of stentor include speaker, talker, utterer, verbaliser.

stentor (noun)	verbalizer (noun)
any of several trumpet-shaped ciliate protozoans that are members of the genus Stentor	someone who expresses in language; someone who talks (especially someone who delivers a public speech or someone especially garrulous)
a speaker with an unusually loud voice