authority

/ɔːˈθɒr.ə.ti/

the moral or legal right or ability to control

威信;权力;管辖权

The United Nations has used/exerted/exercised its authority to restore peace in the area.

联合国行使其权力以恢复该地区的和平。

Do I have absolute autonomy and authority on this?

我在这事上有绝对自主权和决定权吗?

He has no authority over (= ability to control) his students. 他在学生面前没有威信。