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.
From its commanding perch nearly 5,000 feet above sea level, the ancient al-Qahira Castle has watched over Yemen’s third-largest city of Taiz for more than 800 years. Smithsonian Magazine, 12 June 2025 This trend reflects a broader push to adapt to increasing sea levels and severe weather events across the state. Miami Herald Archives, Miami Herald, 10 June 2025 Rapid Ascents From Sea Level Climbers on Mount Everest chased speed records of a different nature in 2025, attempting to travel from sea level to the summit in just a matter of days. Ben Ayers, Outside Online, 4 June 2025 Port Isabel, meanwhile, recorded a sea level rise rate of 5.2 millimeters a year. Theo Burman, MSNBC Newsweek, 31 May 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

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Cite this Entry

“Sea level.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/sea%20level. Accessed 19 Jun. 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

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