verb to close or block off a place or entrance with a seal or barrier
Seal off a room to prevent dust from getting in during renovation.
Seal off an area affected by a hazardous material spill to contain the contamination.
Seal off a building during an outbreak to prevent the spread of disease.
Seal off a crime scene to preserve evidence and prevent contamination.
Seal off a contaminated site to prevent further pollution of surrounding areas.
In a suspense novel, the detective decided to seal off the crime scene to preserve evidence.
During a therapy session, the psychologist may suggest sealing off negative thoughts to focus on positive aspects.
The police officer sealed off the area after a bomb threat was reported.
The firefighter sealed off the burning building to prevent the fire from spreading to neighboring structures.
The construction worker sealed off the construction site to ensure safety and prevent unauthorized access.