“800” number

American  

noun

1. any toll-free telephone number, usually with a 3-digit code of 800, established, as by a business, so that people from widespread areas can call for merchandise, information, or services.

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Example Sentences

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“800” number

When you have a problem with your cable service, there’s a handy “800” number to call.

From Washington Times ● Jul. 30, 2014