The word 大餐 is formed by directly combining two meaningful characters: 大 (dà), which conveys "big" or "grand", with 餐 (cān), which means "meal". The formation is a straightforward conceptual fusion where the first character modifies and amplifies the second, creating a new, compound idea that is intuitively understood as a "large meal" or "feast", emphasizing scale, abundance, or special occasion rather than a routine eating event.