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.
Turkey is planning strict security measures for the summit, including banning demonstrations and restricting access to roads leading to airports, as well as sealing off areas around the summit venue and hotels hosting delegations. ABC News, 23 June 2026 Both the tinder storage and ferro tube sections of the Pen-metheus are sealed off with O-rings to prevent any moisture penetration. New Atlas, 22 June 2026 In recent weeks, Iran has dramatically escalated efforts to seal off its cache of near bomb-grade uranium, deliberately collapsing tunnels and booby-trapping entrances with explosive mines, according to five sources familiar with US intelligence. Jessie Yeung, CNN Money, 13 June 2026 Chemical warfare might be needed to control a serious invasion, but sealing off cracks and crevices that lead into your home, clearing debris and leaves from around your home, and keeping your lawn mowed will help. Joan Morris, Mercury News, 8 June 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

Browse Nearby Words

Cite this Entry

“Seal off.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/seal%20off. Accessed 25 Jun. 2026.

Kids Definition

seal off

verb
: to close tightly
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