seal off

verb

sealed off; sealing off; seals off

transitive verb

: to close tightly

Examples of seal off in a Sentence

Recent Examples on the Web

In the Hugging Face attack, AI agents escaped a testing environment supposedly sealed off from the internet, collaborated using a secret message board and overwhelmed Hugging Face's digital defenses. — Megan Cerullo, CBS News, 28 Sep. 2026

Since then, Anthropic said its AI models hacked into three other organizations during testing, triggering a company review into whether the models were able to access the internet from within testing environments that should have been sealed off. — ABC News, 24 Sep. 2026

The action takes place in a vacuum, sealed off from inner lives as from wider currents. — Richard Brody, New Yorker, 4 Sep. 2026

Authorities sealed off the courts on the final day to file an election petition, clearing the way for Hichilema’s inauguration. — Adrian Elimian, semafor.com, 4 Sep. 2026

Word History

First Known Use

1931, in the meaning defined above

Rhymes for seal off

• ashraf
• checkoff
• cutoff
• falloff
• handoff
• kickoff
• layoff
• liftoff
• markoff
• markov
• payoff
• playoff

Kids Definition

seal off

verb

: to close tightly