‘夕雾’ (xī wù) literally combines 夕 (xī), meaning ‘evening’ or ‘dusk’, and 雾 (wù), meaning ‘mist’ or ‘fog’. Together, it refers specifically to the soft, hazy mist that forms near the ground as temperatures drop at dusk. Unlike general fog (雾), 夕雾 evokes a poetic, tranquil atmosphere—often associated with quiet countryside scenes, mountain valleys, or riverside landscapes at twilight.

This term appears frequently in classical and modern Chinese poetry, prose, and descriptive writing to convey serenity, transience, or gentle melancholy. It is rarely used in scientific or weather-reporting contexts; instead, it belongs to literary and aesthetic vocabulary. While 夕雾 can occasionally refer to the name of a plant (the Japanese foxglove, Platycodon grandiflorus var. albus, known as ‘evening mist flower’ in English), its primary meaning remains the atmospheric phenomenon—especially in standard Mandarin usage.