The word 欢乐 is formed by combining two independent characters, each carrying a core meaning related to positive emotion. The first character, 欢 (huān), conveys a sense of lively joy, excitement, or enthusiastic delight. The second, 乐 (lè), represents happiness, pleasure, or contentment. When placed side-by-side, they do not create a new, unrelated concept but rather fuse their similar semantic fields into a single, intensified idea. The formation is a harmonious coupling where each character amplifies and enriches the other, resulting in a compound that evokes a profound, celebratory, and multifaceted sense of joy and happiness, greater than either character alone.