绿灯 lǜdēng HSK7 green light Origin Definitions Defs Strokes Stroke Words Sentences Sents 红绿灯 hónglǜdēng traffic light traffic light; traffic signal开绿灯 kāilǜdēng to give the green light to turn on a green traffic light; (metaphorically) to give the go-ahead, to permit, or to provide convenience for something to happen