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
Examples are automatically compiled from online sources to show current usage. Read More Opinions expressed in the examples do not represent those of Merriam-Webster or its editors. Send us feedback.
The batteries of these vehicles are built to be completely sealed off. — Shambhavi Rimal, Fort Worth Star-Telegram, 11 Oct. 2026 Treatment for varicose veins typically involves a minimally invasive procedure to shut or seal off the problem veins, using either heat (thermal ablation), a foam or liquid injection (chemical ablation) or a specialized type of glue. — Erica Sloan, Washington Post, 10 Oct. 2026 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 See All Example Sentences for seal off

Word History

First Known Use

1931, in the meaning defined above

Time Traveler
The first known use of seal off was in 1931

Rhymes for seal off

See All Rhymes for seal off

Browse Nearby Words

seal of approval
seal off
seal oil
See all Nearby Words

Cite this Entry

“Seal off.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/seal%20off. Accessed 14 Oct. 2026.

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Kids Definition

seal off

verb
: to close tightly
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