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

call letters

noun
 
/ˈkɔːl letəz/
 
/ˈkɔːl letərz/
[plural] (North American English)
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  1. the letters that are used to identify a radio or television station
    • the call letters WNBC
    Topics TV, radio and newsc2
See call letters in the Oxford Advanced American Dictionary
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