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English definition of “microphone”

microphone

noun [C]     /ˈmaɪ.krə.fəʊn/ US  /-foʊn/ (informal mike, mic)
B2 a piece of equipment that you speak into to make your voice louder, or to record your voice or other sounds: The interviewer asked her to speak into/use the microphone. My laptop has a built-in microphone.Amplifiers, microphones and speakers
(Definition of microphone noun from the Cambridge Advanced Learner's Dictionary & Thesaurus © Cambridge University Press)
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