The word "仓库" is formed through the logical combination of two meaningful characters, each contributing a specific aspect of the final concept. The first character, "仓", originally depicted a granary or a structure for storing grain. The second, "库", historically represented an armory or a vault for storing weapons and valuable items. By joining them, the compound word "仓库" merges these two classical ideas of specialized storage, creating a single, broader, and more generalized modern term that means "warehouse" or "depository", encompassing the storage of any goods.