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Noun radio has 3 senses
radio, radiocommunication, wireless - medium for communication--1 is a kind of broadcasting
 
radio receiver, receiving set, radio set, radio, tuner, wireless - an electronic receiver that detects and demodulates and amplifies transmitted signals--2 is a kind of receiver, receiving system
 --2 is a part of radio, wireless; radio-phonograph, radio-gramophone
 --2 has parts: amplifier; detector; detector, demodulator
 --2 has particulars:
radio, wireless - a communication system based on broadcasting electromagnetic waves--3 is a kind of communication system
 --3 has parts: 
--3 has particulars:
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