车牌
chē pái · HSK 6
license plate
🚗🔢 车 (vehicle) + 牌 (plate/tag) = vehicle plate
车 means vehicle or car, and 牌 means plate, card, or tag (same 牌 as in 名牌 name-brand or 招牌 signboard). Together they form the tag attached to a vehicle — the license plate.
车 — pictograph of a chariot/cart
车 is a pictograph originally drawn as a top-down view of a chariot, showing the axle, wheels, and carriage box. The ancient form 車 clearly depicted two wheels connected by an axle. It still means vehicle, cart, or car today.
牌 — 片 (slice/tablet) + 卑 (phonetic)
A semantic-phonetic compound: 片 'slice, thin board' gives the meaning of a flat tablet or plaque, while 卑 supplies the sound. Originally referred to wooden or bamboo tablets used as signs or labels, later extending to playing cards, brand names, and license plates.