To plate something with chromium.

(UK, Australia) A plastic square sticker consisting of a large red letter P on a white background, placed on a vehicle to indicate that the driver only has a provisional (UK: probationary) driver's licence.

simple past tense and past participle of silver-plate

Having a thin coating of the metal silver applied to it.

Having a thin layer of gold applied to the surface, often by electrolysis.

simple past tense and past participle of gold-plate

An identifying tag, usually of metal, bearing a unique sequence of letters, numbers, or both, and placed at the back and, sometimes, also at the front of a motor vehicle.

simple past tense and past participle of silver plate

(Britain) Either of a pair of rectangular metal plates bearing an alphanumeric code, fixed to the front and rear of a motor car to show its identity as registered with the DVLA.

(analytical chemistry, chemistry) A flat plate with multiple "wells" used as small test tubes