The Chinese word **云霄** (yúnxiāo) is a compound noun formed through semantic combination, where both characters contribute related meanings to create a single, more vivid concept. The first character, **云** (yún), means "cloud," while the second, **霄** (xiāo), refers to "the sky" or "the heavens," often implying the high, empty space above. Together, they form a poetic and elevated term that literally translates to "clouds and sky," but figuratively means the highest reaches of the sky, conveying a sense of immense height or loftiness, as in the phrase "响彻云霄" (echoing to the highest heavens).