The word 宴会 is formed by combining two characters, each contributing a core meaning to create a new concept. The first character, 宴 (yàn), on its own means "feast" or "to entertain". The second character, 会 (huì), carries the primary meaning of "gathering" or "meeting". When placed together, they logically combine to mean a "feast gathering", which is naturally understood as a "banquet" or "formal dinner party". This formation is a direct conceptual synthesis, where the second element often clarifies or categorizes the activity implied by the first.