/ Thesaurus / R Synonyms of register language Find synonyms for: Noun1. register language, tone language, tonal languageusage: a tone language that uses different voice registersWordNet 3.0 Copyright © 2006 by Princeton University. All rights reserved. Related Content Daily Word Quiz: confectionery Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language