The word **烛光** (zhúguāng) is a compound noun formed through semantic combination, where the first character **烛** (zhú) means "candle," serving as the modifier that specifies the source, and the second character **光** (guāng) means "light," acting as the head that names the core phenomenon. This creates a straightforward "modifier-head" (or *attributive*) structure, literally translating to "candle-light," where the light emitted by a candle is explicitly defined by its origin. This transparent formation is typical in Chinese for creating precise, concrete terms, and the word can also extend metaphorically to describe a soft, warm, or romantic atmosphere.