seal off

Meaning: to stop people from going into an area or a building, often because it isn't safe

Synonym: close off

For example:

  • seal off sth After the explosion, the police sealed off the whole area.

  • seal sth off The president's security team sealed the hotel off during his visit.

Quick Quiz:

The zoo was sealed off because

a. a lion had roared

b. a tiger had escaped

c. a seal had clapped

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Contributor: Matt Errey