registration number
noun
a sequence of letters and numbers assigned to a motor vehicle when it is registered, usually indicating the year and place of registration, displayed on numberplates at the front and rear of the vehicle, and by which the vehicle may be identified
Words nearby registration number
registrant,
registrar,
registrate,
registration,
registration document,
registration number,
registration plate,
registry,
registry office,
regius,
regius professor