harmonica
Americannoun
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Also called mouth organ. a musical wind instrument consisting of a small rectangular case containing a set of metal reeds connected to a row of holes, over which the player places the mouth and exhales and inhales to produce the tones.
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any of various percussion instruments that use graduated bars of metal or other hard material as sounding elements.
noun
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Also called: mouth organ. a small wind instrument of the reed organ family in which reeds of graduated lengths set into a metal plate enclosed in a narrow oblong box are made to vibrate by blowing and sucking
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See glass harmonica
Etymology
Origin of harmonica
Noun use of feminine of Latin harmonicus harmonic; in the form armonica (< Italian < Latin ) applied by Benjamin Franklin in 1762 to a set of musical glasses; later used of other instruments
Example Sentences
Examples are provided to illustrate real-world usage of words in context. Any opinions expressed do not reflect the views of Dictionary.com.
In addition to drums, Ranken played the harmonica and provided vocals for the group.
From Los Angeles Times • Feb. 11, 2026
Nicknamed "The Clobberer", Ranken played drums, percussion, harmonica and provided vocals for The Pogues in the 90s and 00s.
From BBC • Feb. 11, 2026
An example of a highly creative response includes words like "galaxy, fork, freedom, algae, harmonica, quantum, nostalgia, velvet, hurricane, photosynthesis."
From Science Daily • Jan. 25, 2026
That persistent harmonica intro or, god-forbid, his later forays into doo-wop were an eternal annoyance, part of the reason he started looking for some alternative in the first place.
From Salon • Dec. 14, 2025
Gift number four was a harmonica and a book about playing it.
From "The Perks of Being a Wallflower" by Stephen Chbosky
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Definitions and idiom definitions from Dictionary.com Unabridged, based on the Random House Unabridged Dictionary, © Random House, Inc. 2023
Idioms from The American Heritage® Idioms Dictionary copyright © 2002, 2001, 1995 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company.