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Definition of call sign noun from the Oxford Advanced Learner's Dictionary

call sign

noun

/ˈkɔːl saɪn/

/ˈkɔːl saɪn/

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the letters and numbers used in radio communication to identify the person who is sending a message

See call sign in the Oxford Advanced American Dictionary

Check pronunciation: call sign

Nearby words

adjective

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OPAL spoken words

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