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.
Over millions of years, gradual changes in that gravitational landscape could shift how regional sea level is measured relative to the land. Samantha Mathewson, Space.com, 25 Feb. 2026 Shannon’s previous study used a nearly identical protocol to test the effects of Maurten’s baking soda on 40K time trial performance at sea level. Alex Hutchinson, Outside, 25 Feb. 2026 Flooding is bad for real estate values, and coastal cities like New York are due for a boatload of sea level rise. Voice Of The People, New York Daily News, 22 Feb. 2026 The resort — with 59 trails and 14 lifts — sits between 6,600 feet and 8,200 feet above sea level, while Wrightwood, which is about 5,900 feet up, enjoyed 14 inches of snow. Andrew J. Campa, Los Angeles Times, 21 Feb. 2026 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 2 Mar. 2026.

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!

More from Merriam-Webster