The word 营业 is formed through the logical combination of two meaningful characters: 营, which carries the core idea of "to operate", "to manage", or "to run", and 业, which signifies "business", "enterprise", or "vocation". Their fusion is not arbitrary but conceptual; it directly compounds the action of managing with the entity being managed. Thus, the character for operation (营) is prefixed to the character for business (业) to create a single, fused concept meaning "to do business" or "to be open for business", effectively capturing the entire activity of operating a commercial enterprise.