DictionarycordonGuarded boundary
noun / verb

cordon

KOR-dun/ˈkɔːrdn/

A line of people or barriers controlling access to an area.

A police cordon keeps bystanders away from the damaged building.

Police officers and linked barriers form an unbroken line across a street, preventing pedestrians from entering the blocked area.
Etymology

A cordon was originally a small cord or ribbon. The word later described a guarding line of troops or posts, treating the barrier they formed as a cord around a place.

In context

CUNY TV15:31
their parliament and made it pass the first cordon of police,
How Far Will the Far Right Go? | Conversations with Jim Zirin
LetThemTalkTV10:15
Just like this, if a crime has been committed, there may be a police cordon.
Advanced CRIME, PUNISHMENT and LEGAL Vocabulary

More examples

  • Only emergency crews can pass through the cordon.
  • Workers cordon off the broken sidewalk with orange barriers.
  • Police cordoned off the street while firefighters tackled the blaze.

Forms

cordon · cordons · cordoned · cordoning

Similar words

barricade
A physical obstruction, rather than a line of guards.
blockade
Usually prevents movement or supplies rather than merely controlling access.