What Does “Seal sth off” Mean?
“Seal sth off” means to close or block an area completely, usually to prevent access or protect it.
Introduction
The phrasal verb “seal sth off” is often used when talking about closing places for safety, security, or privacy reasons. The phrase involves “seal,” which means to close tightly, and “off,” indicating separation or blocking. Understanding the Seal sth off meaning helps learners describe situations where access is restricted, like during emergencies or investigations. This phrase is common in news reports, everyday conversations, and formal contexts.
Quick Info Box
- Phrasal verb: Seal something off
- Type: Transitive
- Level: B2
- Short meaning: To close an area to stop people from entering
Structure (Grammar Rules)
“Seal sth off” is a separable phrasal verb. You can place the object between “seal” and “off” or after “off.”
- Seal something off (correct)
- Seal off something (also correct)
Examples:
- The police sealed the building off.
- The police sealed off the building.
How to Use Seal sth off?
Use “seal sth off” when you want to talk about closing an area completely. It’s often about safety or security, such as sealing off a crime scene, a dangerous area, or a private section. It can be used in both formal and informal English.
Remember that the object (sth) must be something that can be closed or blocked.
Examples
Imagine a fire in a building. The firefighters might seal the area off to keep people safe.
- The authorities sealed the street off after the accident.
- They sealed off the laboratory to prevent contamination.
- The police sealed the entire neighborhood off during the investigation.
- Workers sealed off the broken pipe to stop the leak.
- The government sealed off the border to control entry.
These examples show how to use Seal sth off in a sentence clearly.
Common Mistakes
Sometimes learners confuse the placement of words or use the phrase incorrectly.
- Incorrect: Seal off the door something.
- Correct: Seal something off.
- Incorrect: Seal the off room.
- Correct: Seal the room off.
Make sure the object is between “seal” and “off” or after “off” for correct grammar.
Differences / Synonyms
Similar phrases include “block off,” “close off,” and “shut off.” However, “seal sth off” implies a tighter or more official closure, often to protect or secure.
- Block off: To stop access but less formal.
- Close off: Similar meaning but can be temporary.
- Shut off: Usually refers to stopping a service or flow, like water or electricity.
“Seal sth off” is more common in official or emergency contexts.
Common Collocations
People often use “seal sth off” with places or things that can be blocked or closed:
- Seal the area off – to close a specific space
- Seal the building off – to prevent entry to a building
- Seal the street off – to block a road
- Seal the room off – to isolate a room
- Seal the border off – to close a country’s border
Related Phrasal Verbs
Here are related phrasal verbs of seal sth off:
Real-life Dialogue
Here is a short conversation using “seal sth off”:
Officer: We need to seal off this street due to the gas leak.
Resident: How long will it be closed?
Officer: Until the engineers fix the problem. Please stay clear.
Practice
Fill in the blanks with the correct form of “seal sth off”:
- The police __________ the park __________ after the incident.
- They __________ the building __________ to prevent unauthorized access.
- Firefighters __________ the area __________ during the rescue.
FAQ
- What does “seal sth off” mean? It means to close or block an area completely to stop people from entering.
- Is “seal sth off” separable? Yes, the object can go between “seal” and “off” or after “off.”
- Can I use “seal sth off” in informal English? Yes, but it is more common in formal or official situations.
- What is the difference between “seal off” and “close off”? “Seal off” suggests a tighter, more secure closure than “close off.”
- Can “seal sth off” refer to physical objects only? Mostly yes, it refers to areas or spaces that can be blocked or closed.
