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Definition of Touch-Tone™ adjective from the Oxford Advanced Learner's Dictionary

Touch-Tone™

adjective
 
/ˈtʌtʃ təʊn/
 
/ˈtʌtʃ təʊn/
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  1. (of a phone or phone system) producing different sounds when different numbers are pushed
See Touch-Tone in the Oxford Advanced American Dictionary
trait
noun
 
 
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B2
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