N-COUNT
特權；獨有的權力；專利
If something is the prerogative of a particular person or group, it is a privilege or a power that only they have.
例句
Constitutional changes are exclusively the prerogative of the parliament...
修改憲法是議會獨有的權力。
It is your prerogative to stop seeing that particular therapist and find another one.
你有權決定不再去看那個治療師而另找一個。