To Extinguish Something
To Erase Something, To Turn Something Off
transitive verb, godan verb
This word consists of kanji with hiragana attached. Because the hiragana ends with an う sound, you know this word is a verb. The kanji itself means extinguish so the verb vocab version is to extinguish something. You can also use this word to say to erase something, like data, and to turn something off, like the lights or the power. Technically you're extinguishing the data, as well as the lights or power, right?
Since this word consists of a kanji with hiragana attached, you can bet that it will use the kun'yomi reading. You didn't learn that reading with this kanji, so here's a mnemonic to help you:
You have to extinguish the fire! The kettle (け) got too hot, and it caught on fire.
I have a past that I want to erase.
I erased all the data by mistake.
After you leave the classroom, please don’t forget to turn off the light.