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English definition of “kazoo”

kazoo

noun [C] uk   /kəˈzuː/ (plural kazoos) us  
a small musical instrument consisting of a plastic or metal tube with a small piece of paper inside which shakes when the player hums (= sings with closed mouth) into it, making a high soundWind instruments
(Definition of kazoo from the Cambridge Advanced Learners Dictionary & Thesaurus © Cambridge University Press)
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