The word 用餐 is formed by combining two meaningful characters: 用 (yòng), meaning "to use" or "to employ", and 餐 (cān), meaning "meal". It is a deliberate conceptual construction where the act of "using" is directly applied to the object "meal", creating a single, integrated idea that means "to use a meal" or, more naturally, "to dine". This formation reflects a logical and literal assembly of components to express a specific, often more formal, activity.