

この車は電気で走ります。
電気自動車を買いたいです。
台風で電気が止まりました。
"でんき(電気)" is in the lesson "Engineer" (Level 39), along with 13 other useful words. LinDuo has 180 topic lessons like this one, 2,379 words in total. Every word has an illustration, a transcription and pronunciation in a female and a male voice. Just 10–15 minutes a day is enough to learn them all. Free, and works offline.