General English

  • noun a series of letters and numbers given at the end of an address, to help the people whose job is to sort letters


  • noun a series of numbers and letters which forms part of an address, indicating the street and the town in a way which can be read by a scanner

Human Resources

  • noun a set of letters and numbers used to indicate a town or street in an address on an envelope

Information & Library Science

  • noun a system of letters and numbers used by the post office to identify towns and roads to aid the delivery of letters