Permission
noun, verbal noun
I permit that it is possible. So, go ahead, do it. I give you permission.
This is a jukugo word, which usually means on'yomi readings from the kanji. If you know the readings of your kanji you'll know how to read this as well.
学校から許可はもらっています。
We have permission from the school.
それって誰が許可したの？
Who gave you permission to do that?
大きなプロジェクトを開始するには、社長の許可が必要です。
The president's permission is required to start a major project.