The Chinese word **大白天** (dà bái tiān), meaning "in broad daylight," is formed through a straightforward compound structure where each character contributes to both a literal and an intensified figurative meaning. The character **大** (dà) means "big" or "great," **白** (bái) means "white" or "bright" (evoking daylight), and **天** (tiān) means "sky" or "day." Combined, they create the literal sense of "big bright sky/day," which functionally emphasizes the full, unobscured light of daytime. As an idiom, it is commonly used to highlight that something conspicuous or audacious is happening openly during the day, thus reinforcing a sense of obviousness or brazenness.