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Definition 1800 number in American English

1800 number

/ˌwʌn eɪt ˈhʌndrəd ˌnʌmbər/
1

in Australia, a telephone number beginning with 1800 that is free to use and is usually for calling business services. The company you are calling pays for the call.

Synonyms and related words
Definition 1800 number in American English