A piano accordion



  • A small, portable, keyed wind instrument, whose tones are generated by play of the wind from a squeezed bellows upon free metallic reeds.
  • A vertical list of items that can be individually expanded and collapsed to reveal their contents.


  • To fold up, in the manner of an accordion


Similar words


  • First attested in 1831. From German Akkordeon, from Akkord, from French accord, from Old French acorder, based on Italian accordare ("to tune"). See also accord.

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