Other forms: permissions
Permission is the go-ahead from somebody in charge. You may do the thing now, and you could not before.
The word takes to and a verb, or for a noun: permission to leave, permission for the extension. Planning permission is the British term for local authority approval to build. There is a standard pair of phrases about attitude, since asking permission is the careful route and seeking forgiveness afterwards is the other one. The verb is permit, which is also a noun with the stress moved to the front.
1nounpermissionOfficial or formal consent to do something.
“She had permission to leave early.”
Latin
permissiō
Middle French
permission
Middle English
permision
English, today
permission
From Middle English permision, permission, permissioun, permyssion, from Middle French permission, from Latin permissiō. Equivalent to permit + ion. Mostly replaced native leave, from lēaf.
Etymology from Wiktionary, CC BY-SA