红绿灯 Traditional form: 紅綠燈 Pinyin (reading): hónglüdēng Definitions: traffic light traffic signal Characters: 红 - red, vermillion; to blush, to flush; popular 绿 - green; chlorine 灯 - lamp, lantern, light Traditional characters: 紅 - red, vermillion; to blush, to flush; popular 綠 - green; chlorine 燈 - lamp, lantern, light