spouter vs talker

spouter and talker both are nouns.

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

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

spouter: an obnoxious and foolish and loquacious talker
talker: someone who expresses in language; someone who talks (especially someone who delivers a public speech or someone especially garrulous)

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

spouter (noun)	talker (noun)
a spouting whale	someone who expresses in language; someone who talks (especially someone who delivers a public speech or someone especially garrulous)
an oil well that is spouting
an obnoxious and foolish and loquacious talker