Dictionary.com
Thesaurus.com
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."

Keep Reading on Vocabulary.com

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.

The activist also pushed for Sealed Air to take itself private.

From Barron's • Feb. 11, 2026

Sealed Air was founded in 1960 with the invention of its patented Bubble Wrap cushioning.

From The Wall Street Journal • Nov. 12, 2025

He also appeared in TV series “The L Word,” “Chicago Fire” and several installments of Hallmark’s “Signed, Sealed, Delivered” TV movie franchise.

From Los Angeles Times • Feb. 20, 2025

Sealed off in its own large room, the production line has all the expensive machinery needed to make the computer chips, and the air inside is carefully controlled to avoid any contamination during production.

From BBC • Jan. 11, 2024

Sealed again in the dry warmth of the tent, we laid out our bags.

From "The Left Hand of Darkness" by Ursula K. Le Guin

Vocabulary.com logo
by dictionary.com

Look it up. Learn it forever.

Remember "sealed" for good with VocabTrainer. Expand your vocabulary effortlessly with personalized learning tools that adapt to your goals.

Take me to Vocabulary.com