noun
temporary closure; temporary shutdown
Used for facilities, services, roads, or systems that are closed or suspended for a limited period.
工事のため、この道路は一時閉鎖されます。
This road will be temporarily closed due to construction.
システムメンテナンスのため、サイトを一時閉鎖いたします。
The site will be temporarily shut down for system maintenance.
Compound of 一時 (いちじ, 'temporary') and 閉鎖 (へいさ, 'closure').