Either of a pair of rectangular metal plates, containing a mixture of letters and numbers fixed to the front and rear of a motor car showing that its identity has been registered with the DVLA
A number plate is a sign on the front and back of a vehicle that shows its registration number. He drove a Rolls-Royce with a personalised number plate. one of the signs with numbers and letters on it at the front and back of a car registration number American Equivalent: license plate