REGISTRATION

[noun] [U]With an election approaching, both political parties are encouraging voter registration.A road vehicle's registration (number) (informal reg) (US usually license plate number) is the official set of numbers and letters shown on the front and back.Police are looking for a small blue car with the registration number K17 EMW.It's not bad for a K registration/reg (= vehicle with the letter K showing the year when it was registered).