1. A musical instrument, in which the tones are produced by friction against the edges of a series of hemispherical glasses; a musical instrument of plates of glass or metal, of graduated lengths, beaten on with a small mallet.

Nuttall's Standard dictionary of the English language By Nuttall, P.Austin

• harmonie,
• harmoic,
• hermonic,
• hamonic,
• harmoinca,
• hermonica,
• hamonica,
• armonic,
• harmonick,
• harmonia,
• harmonicc,
• harminica,
• haremonica,
• harmonnica,
• harmonicca,
• harmoniaa,
• harmonical,
• harmonikal,
• japponica,
• tharmobia

• harmonizable,
• Harryman,
• harriman,
• harmonical,
• harmonic,
• harmoniser,
• harmonised,
• harmonize,
• Harmann,
• harmonically,
• Harmon,
• harmonic law,
• harmonized,
• Harman,
• harmonics,
• hormonal,
• harmonise,
• harmonizer,
• harmoniously,
• harmonium,
• harmony,
• harmonious.

The adjective form of the word "harmonica" is "harmonic".

The plural of the "harmonica" can be the "harmonicas".

The singular of the "harmonica" can be the "harmonica".