Mass production is a manufacturing process where a large quantity of products is produced in a short amount of time. There are several synonyms for this term, including batch production, assembly-line production, and repetitive manufacturing. Batch production involves producing products in batches, while assembly-line production includes the use of a single production line to create several identical products. Repetitive manufacturing, on the other hand, involves producing products continuously with minimal variation. Other related terms include serial production, flow production, and high-volume manufacturing. While each of these terms may differ slightly in their approach, they all refer to the same general concept of producing large quantities of products efficiently and cost-effectively.