灯油【とうゆ】
kerosene, paraffin, lamp oil
灯台【とうだい】
lighthouse, old-fashioned interior light fixture comprising a wooden pole with an oil-filled dish and a wick atop it
蛍光灯【けいこうとう】
fluorescent lamp, fluorescent light, person who is slow to react, someone slow on the uptake
懐中電灯【かいちゅうでんとう】
(electric) torch, flashlight
消灯【しょうとう】
putting out the lights, turning off the lights
街灯【がいとう】
street light, streetlamp