permission
If someone gives you permission to do something, they say they will allow you to do it.
My parents gave me permission to go.
You can't do it without permission.
Permission is an uncountable noun. Don't talk about ‘permissions’ or ‘a permission’.
When you ask for permission to do something and are given it, you say that you get or, in more formal English, obtain permission to do it.
She got permission to leave early.
The school has obtained permission to build a new science block.
Be careful
Don't use ‘take’. Don't say, for example, ‘She took permission to leave early’.
Don't use ‘take’. Don't say, for example, ‘She took permission to leave early’.
When you have been given permission to do something, you say that you have or have got permission to do it.
Students don't have permission to leave the school grounds at lunchtime.
You can only copy these documents if you've got permission.