顶灯

顶灯	dǐng dēng	dome light (of a taxi etc) / ceiling light (in a room) / interior light (of a car) / light on the top of a mast etc
顶	dǐng	apex / crown of the head / top / roof / most / to carry on the head / to push to the top / to go against / to replace / to substitute / to be subjected to (an aerial bombing, hailstorm etc) / (slang) to "bump" a forum thread to raise its profile / classifier for headwear, hats, veils etc
灯	dēng	lamp / light / lantern / CL:盏