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radio

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1radio/ˈreɪdiˌoʊ/noun
pluralradios
1radio
/ˈreɪdiˌoʊ/
noun
pluralradios
Learner's definition of RADIO  
[noncount]  : the system or process that is used for sending and receiving signals through the air without using wires — often used before another noun
[noncount]  : programs that are broadcast by radio — often used before another noun
— see also talk radio
[count] 
: a device that is used to receive the signals that are broadcast by radio
   b  : a device that is used to send and receive messages by radio
[noncount]  : the business that makes and broadcasts radio programs
2radio/ˈreɪdiˌoʊ/verb
radiosradioedradioing
2radio
/ˈreɪdiˌoʊ/
verb
radiosradioedradioing
Learner's definition of RADIO  
: to send a message to someone by radio
[no object]
[+ object]
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