inquirer vs talker

inquirer and talker both are nouns.

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

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

inquirer: someone who asks a question
talker: someone who expresses in language; someone who talks (especially someone who delivers a public speech or someone especially garrulous)

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

inquirer (noun)	talker (noun)
someone who asks a question	someone who expresses in language; someone who talks (especially someone who delivers a public speech or someone especially garrulous)