ratification
US /ˌræt̬.ə.fəˈkeɪ.ʃən/
UK /ˌræt̬.ə.fəˈkeɪ.ʃən/

1.
批准, 认可
the action of signing or giving formal consent to a treaty, contract, or agreement, making it officially valid
:
•
The treaty requires ratification by all member states.
该条约需要所有成员国的批准。
•
The ratification of the new policy took several months.
新政策的批准花了几个月时间。