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Synonyms

sealed

British  
/ siːld /

verb

  1. the past participle of seal 1

"Collins English Dictionary — Complete & Unabridged" 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012

adjective

  1. (of a road) having a hard surface; made-up

"Collins English Dictionary — Complete & Unabridged" 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012

Explanation

Anything that's sealed is securely — maybe even permanently — closed or unavailable. An ancient sealed tomb may be safe from curious explorers or grave robbers. A sealed bottle of medicine is tightly shut, not even allowing air inside. A sealed document might be physically closed, like a sealed envelope that's pasted shut, or just unavailable for anyone without special permission to look at. When a promise or vow is sealed, it's officially established or decided: "Their sealed promise meant that neither of them could ever mention the secret club."

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Example Sentences

Examples are provided to illustrate real-world usage of words in context. Any opinions expressed do not reflect the views of Dictionary.com.

See Examples For:

North Korean dictator Kim Jong Un has sealed borders with fences, walls and land mines to prevent citizens from escaping to South Korea.

From The Wall Street Journal ● Oct. 8, 2026

Researchers have found that it also helps epithelial cells, which form continuous sealed layers throughout the body, engulf nearby dead cells.

From Science Daily ● Oct. 5, 2026

US Secretary of State Marco Rubio will travel Monday to Iceland to continue pressing US interests in the Arctic, two weeks after Washington sealed a security pact on Greenland.

From Barron's ● Oct. 5, 2026

Arellano: If anyone needed any proof I’m the least hip of the LAT columnistas, my Fred Allen joke sealed the deal.

From Los Angeles Times ● Oct. 1, 2026

Gently, he cut a generous lock of hair and sealed it in a plain white envelope.

From "Chasing Lincoln's Killer" by James L. Swanson

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