/pəˈmɪʃn ||; pɚˈmɪʃən/noun [U] permission (for sth);permission (for sb) (to do sth) the act of allowing sb to do sth, especially when this is done by sb in a position of authority 准许；许可: I'm afraid you can't leave without permission. 恐怕未经批准你是不可以离开的。to ask/give permissionfor sth 要求准许做某事；准许做某事 ☞Be careful. Permission is uncountable. A document that says that you are allowed to do something is a permit. 注意，permission是不可数的。准许某人做某事的文件叫做permit（许可证）。