Last Updated：2025/11/29

(transitive) To physically isolate an area or building for security reasons preventing passage of humans or vehicles.

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seal off

Source Word

seal off

Verb

transitive

(transitive) To physically isolate an area or building for security reasons preventing passage of humans or vehicles.

Japanese Meaning

安全上の理由などで、ある区域や建物を物理的に隔離し、出入口や通行を遮断する行為。 / 封鎖する、遮断する

The police decided to seal off the downtown block after a suspicious package was found.

不審な荷物が見つかった後、警察は繁華街の一区画を封鎖することに決めた。

Sense（1）

(transitive) To physically isolate an area or building for security reasons preventing passage of humans or vehicles.

Police sealed off the building following an anonymous bomb warning.

seals off

（ present singular third-person ）

sealing off

（ participle present ）

sealed off

（ participle past ）

sealed off

（ past ）