seal off


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Related to seal off: sealable
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seal off

To close, bar entry to, or isolate something very tightly or securely. A noun or pronoun can be used between "seal" and "off"; often used in passive constructions. The building was sealed off after an outbreak of a deadly virus occurred in the laboratory. The country sealed its borders off in response to the massive surge in migrants in the last week. He's been sealed off in his room ever since he started writing that novel of his.
See also: off, seal

seal off

Also, seal up. Close tightly or barricade to prevent entry or exit. For example, We're sealing off the unused wing of the building, or The jar is tightly sealed up. Dating from the first half of the 1900s, this idiom uses seal in the sense of "close securely," as one used to do with a seal of wax.
See also: off, seal

seal off

v.
1. To close tightly or surround something or someplace with a barricade or cordon: The government has sealed off its borders. The police surrounded the building and sealed it off.
2. To isolate someone or something: The remote location sealed the village off from the rest of the world.
See also: off, seal
References in periodicals archive ?
Both are used to seal off and contain energy, prana, within the Yogi's body, so it can be transformed into movement, healing or purification.
The new HS and KS series nozzles seal off very close to the front of the nozzle, so there is very little melt to be purged in the sealing area.
1, the center and guards are responsible for the nose tackle and backside LB - a three-on-two matchup that can seal off a slant by the nose man or any stunt by the LB.
If the area of work is more than 6 square feet, the de-leader/contractor will have to seal off the entire room as is required for asbestos.
CORDON Garda seal off scene of yesterday's murder in Blarney, Co Cork
Flood-Guard[R] from General Pipe Cleaners is available for 2", 3" and 4" floor drains: the Flood-Guard operates like a check valve to seal off water back-up caused by overloaded sewers.
Police were forced to seal off the southbound Foleshill Road after a woman was struck by a bus.