仓库
cāng kù · HSK 6
warehouse
📦 仓库 = 仓 (granary) + 库 (storehouse)
仓 originally meant a grain storehouse; 库 means a treasury or storehouse for goods or vehicles. Together they form a general word for warehouse or depot.
库 — 广 (shelter) + 车 (cart/vehicle)
库 is a semantic compound combining 广 (a roof or shelter) with 车 (cart or chariot). Originally it depicted a building where chariots and weapons were stored, hence an arsenal or storehouse. The meaning broadened over time to any warehouse, treasury, or storage facility.