The word 大声 is formed by the direct, conceptual combination of its two component characters: 大 (dà), meaning "big" or "large", and 声 (shēng), meaning "sound" or "voice". It is constructed through a simple, logical merge where the first character descriptively modifies the second, creating a compound idea, literally a "big-sound", which conceptually fuses to mean "loud" or "in a loud voice". This formation relies on a fundamental, almost pictographic logic where the quality of one element (size) is applied to the nature of another (sound), resulting in a new, unified concept understood through the immediate relationship of its parts.