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accordion

noun [C]
 
 
/əˈkɔː.di.ən/ US  /-ˈkɔːr-/

Definition

a box-shaped musical instrument consisting of a folded central part with a keyboard, played by pushing the two ends towards each otherKeyboard instruments
(Definition of accordion noun from the Cambridge Advanced Learner's Dictionary & Thesaurus © Cambridge University Press)

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