Breadcrumb Home > Thesaurus > H Synonyms of harmonica Find synonyms for: Noun 1. harmonica, mouth organ, harp, mouth harp, free-reed instrument usage: a small rectangular free-reed instrument having a row of free reeds set back in air holes and played by blowing into the desired hole WordNet 3.0 Copyright © 2006 by Princeton University. All rights reserved.Definition and meaning of harmonica (Dictionary) TrendingHere are the facts and trivia that people are buzzing about. Chinese New Year History, Meaning, and Celebrations Current Events This Week: February 2024 Valentine's Day Valentine's Day History Mardi Gras 30 "Charlie and the Chocolate Factory" Quotes ✖ Related Content Daily Word Quiz: hagiography Analogy of the Day: Today’s Analogy Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language