conversationalist vs verbaliser

conversationalist and verbaliser both are nouns.

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

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

conversationalist: someone skilled at conversation
verbaliser: someone who expresses in language; someone who talks (especially someone who delivers a public speech or someone especially garrulous)

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

conversationalist (noun)	verbaliser (noun)
someone skilled at conversation	someone who expresses in language; someone who talks (especially someone who delivers a public speech or someone especially garrulous)