This word is acceptable for play in the US & UK dictionaries that are being used in the following games:

• Lexulous
• Wordscraper
• Wordosaur

n. A portable wind instrument with a small keyboard and free metal reeds that sound when air is forced past them by pleated bellows operated by the player.

adj. Having folds or bends like the bellows of an accordion: accordion pleats; accordion blinds.

n. A small, portable, keyed wind instrument, whose tones are generated by play of the wind from a squeezed bellows upon free metallic reeds.

adj. Pleated, or folded like a bellows from an accordion.

v. To fold up, in the manner of an accordion

n. A small, portable, keyed wind instrument, whose tones are generated by play of the wind upon free metallic reeds.

n. A small keyed wind-instrument, opening and shutting like a bellows, and having its tones generated by the play of wind thus produced upon metallic reeds.

Resembling in its folds the bellows of an accordion: as, an accordion camera (one that is extensible), accordion skirts, etc.

n. a portable box-shaped free-reed instrument; the reeds are made to vibrate by air from the bellows controlled by the player

"He won an accordion from a Chinese barkeep in Luna City by cheating at onethumb and thereafter kept going by singing to the miners for drinks and tips until the rapid attrition in spacemen caused the Company agent there to give him another chance."

free-reed instrument    keyboard instrument   

concertina    bandoneon   

button accordion    accordionist    piano accordion   

squeezebox   

Edwardian    Gordian    gordian   

trombone    harmonica    sax    mandolin    cornet    harpsichord    cello    ukulele    guitar    flute