卡车
kǎchē · HSK 7
truck
🚚 卡 (kǎ) sounds like car + 车 = vehicle, so a big car-vehicle is a truck
卡 kǎ borrows the sound of English car, and 车 chē means vehicle. Stack the loan-sound onto the vehicle word and you get the heavy hauling lorry.
卡 — 上 (up) + 下 (down)
卡 is a modern compound formed by stacking 上 'up' on 下 'down', visually depicting something stuck between two positions — neither up nor down. From this 'wedged' image come its core meanings: to block, to get stuck, and a checkpoint or card. The reading kǎ also transcribes foreign words like 'card', while qiǎ keeps the older 'pinch/stuck' sense.
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.