noun, noun or participle which takes 'suru', transitive verb
blockade; lockdown; sealing off
Physical or logistical blocking of an area, road, port, or access point. Common in military, disaster, and public-safety contexts.
警察は事故現場を封鎖した。
The police sealed off the accident site.
港が封
The port is blockaded, so supplies cannot get through.
noun, noun or participle which takes 'suru', transitive verb
Financial sense: blocking access to bank accounts or assets, often by government order.
政府はテロ組織の資産を封鎖した。
The government froze the assets of the terrorist organization.