Synonyms for the word "factory" include manufacturing plant, mill, workshop, production facility, assembly line, and processing unit. These terms describe a place where raw materials are transformed into finished products using various methods and machinery. A manufacturing plant usually specializes in producing a specific type of product, such as clothing, automobiles, or electronics. A mill is a factory that grinds raw materials, such as grain or wood, into usable products. A workshop is a smaller factory often used for crafting or repairing items. An assembly line is a process-driven factory where products are made by groups of people working together. A processing unit is a factory that transforms raw materials into usable or consumable products, such as petroleum, food, or cosmetics.