し締shiめmeき切kiるruし閉shiめmeき切kiるru
1.
To securely close windows or doors, ensuring they remain tightly shut for protection against the elements.
2.
To permanently stop or restrict the flow of water in a river or construction project by sealing off existing waterways.
3.
To reach a deadline or limit, resulting in the cessation of an application or process, marking an end to further submissions or actions.
Example:
ラスト・オーダーは締め切らせていただきました。