mentioner vs verbaliser

mentioner and verbaliser both are nouns.

Word	Noun	Adjective	Verb	Adverb
mentioner	Yes	No	No	No
verbaliser	Yes	No	No	No

As nouns, verbaliser is a hypernym of mentioner; that is, verbaliser is a word with a broader meaning than mentioner:

mentioner: a speaker who refers to something briefly or incidentally
verbaliser: someone who expresses in language; someone who talks (especially someone who delivers a public speech or someone especially garrulous)

Other hypernyms of mentioner include speaker, talker, utterer, verbalizer.

mentioner (noun)	verbaliser (noun)
a speaker who refers to something briefly or incidentally	someone who expresses in language; someone who talks (especially someone who delivers a public speech or someone especially garrulous)