noun
standard white license plate with green characters (private car)
Refers to the white license plate with green text used on private vehicles in Japan, as opposed to green plates for commercial vehicles.
白ナンバーの車は自家用車です。
A car with a white license plate is a private vehicle.
Green license plate with white characters, used for commercial vehicles such as taxis and trucks.
Compound of 白 (white) and ナンバー (number, from English 'number'), referring to the white license plate.