Erase
Delete
noun, する verb
If you want to erase and extinguish every lamp and every picture of a lamp in the world, just erase them all. Simple as that.
まっしょう
This is a jukugo word that uses the on'yomi readings of the kanji. You should be able to read this on your own.
彼は怪我で一軍登録を抹消されたんだ。
His army registration was deleted due to the injury.