The Chinese word **声响** is a **compound word** formed by combining two independent, semantically related characters: **声** (shēng), meaning "sound" or "voice," and **响** (xiǎng), meaning "noise," "echo," or "to make a sound." It is an example of a **coordinative or synonymous compound**, where the two elements are similar in meaning and combine to create a single, more vivid or comprehensive concept—in this case, a general term for "sound," "noise," or "din" that often implies a noticeable or resonant auditory effect. The formation leverages the nuanced overlap and reinforcement of the two characters to express the phenomenon of sound in a more dynamic or substantial way than either character might alone.