- (in telephoning)
- a call made to a number other than the one intended.
- the number or person reached through such a call.
- Slang.
- the wrong person for a particular task, role, or situation: Me cook a gourmet dinner?—You've got the wrong number!
- an inadequate, disagreeable, or repulsive person: She's OK, but her brother's a wrong number.
- a telephone number wrongly connected or dialled in error or the person so contacted
