Jabberer and Utterer

Jabberer noun - Someone whose talk is trivial drivel.

Utterer and jabberer are semantically related. In some cases you can use "Utterer" instead a noun "Jabberer".

Utterer noun - Someone who expresses in language; someone who talks (especially someone who delivers a public speech or someone especially garrulous).

Jabberer and utterer are semantically related. Sometimes you can replace term "Jabberer" with "Utterer", this nouns are similar.