Definition of telephone number
: a number assigned to a telephone line for a specific phone or set of phones (as for a residence) that is used to call that phone —called also phone number
First Known Use of telephone number
TELEPHONE NUMBER Defined for English Language Learners
Definition of telephone number for English Language Learners
: a number that you dial on a telephone to reach a particular person, business, etc.
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Britannica.com: Encyclopedia article about telephone number
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