sea level

noun

: the level of the surface of the sea especially at its mean position midway between mean high and low water compare ground level sense 1a

Examples of sea level 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 tallest dune is just 60 feet above sea level—Aldabra’s highest point. Kevin Gepford, Smithsonian Magazine, 15 Apr. 2025 So Far The flight only travelled just above the Kármán line 330,000 feet above sea level, defined by the Fédération Aéronautique Internationale as the edge of space. Larisha Paul, Rolling Stone, 14 Apr. 2025 And while what’s left of the Titanic currently lies at the bottom of the ocean at approximately 12,500 ft. below sea level, the new 3D model will enable analysts to study the wreckage for generations to come — even as the real ship decays over time. Toria Sheffield, People.com, 13 Apr. 2025 The analyst said this could indicate the deployment of submersibles, which can reach 10,000 meters below sea level, according to its operator. Raja Krishnamoorthi, MSNBC Newsweek, 9 Apr. 2025 See All Example Sentences for sea level

Word History

First Known Use

1806, in the meaning defined above

Time Traveler
The first known use of sea level was in 1806

Browse Nearby Words

Cite this Entry

“Sea level.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/sea%20level. Accessed 24 Apr. 2025.

Kids Definition

sea level

noun
: the height of the surface of the sea midway between the average high and low tides

More from Merriam-Webster on sea level

Last Updated: - Updated example sentences
Love words? Need even more definitions?

Subscribe to America's largest dictionary and get thousands more definitions and advanced search—ad free!