Definition

1. Verb (transitive):
   • To make an area or passage inaccessible by placing a barrier or obstacle. To physically prevent movement or access through a space.
   • To isolate or separate an area from its surroundings. To close or seal a section, often for safety, security, or control.

Usage

The verb "block off" is used with a direct object (the area being closed). It describes a deliberate action to close access. - It is commonly used in contexts like traffic management, construction, crime scenes, and event security. - The phrasal verb often implies a temporary or purposeful closure.

Examples

• Verb:
  • The police will block off the street for the marathon.
  • We need to block off the old fireplace to stop the draft.
  • Construction crews have blocked off the entire sidewalk.

Advanced Usage

• "to be blocked off": The passive form describes the state of an area being closed.
  • The downtown area was blocked off after the parade.
• Used figuratively to mean isolating something mentally or emotionally.
  • After the argument, she completely blocked off her feelings.

Variants and Related Words

• Blockade (n/v): An official action to prevent goods or people from entering or leaving a place; to set up such a barrier.
  • The navy established a blockade of the port.
• Barricade (n/v): A temporary barrier for defense or obstruction; to block or defend with such a barrier.
  • Protesters barricaded the entrance to the building.

Synonyms

• Seal off: To close something securely so nothing can pass through.
• Cordon off: To prevent access to an area by surrounding it, especially with a line of police or tape.
• Close off: To stop people from entering a place or using a path.

Related Phrasal Verbs

• Shut off: To stop the flow or operation of something (e.g., water, power, a road).
  • They shut off the water main to repair the leak.
• Cut off: To disconnect or isolate. Can be used for roads, supplies, or communication.
  • The flood cut off several villages from the main town.

Related Idioms

• No idiom directly uses "block off." The action is typically described literally.

Verb

1. block off the passage through
   • We shut off the valve
2. render unsuitable for passage
   • block the way
   • barricade the streets
   • stop the busy road
3. obstruct access to