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English definition of “800 number”

800 number

noun [C]     /ˌeɪtˈhʌn.drədˌnʌm.bər/ US  /-bɚ/
in the US, a free phone number that begins with 800, provided by companies or other organizations offering advice or informationCommunicating by telephone
(Definition of 800 number noun from the Cambridge Advanced Learner's Dictionary & Thesaurus © Cambridge University Press)
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