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
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As the sea levels have dropped and the cliffs have become exposed, so too have their secrets. Jt Moodee Lockman, CBS News, 23 Mar. 2026 The excess heat is also warming and melting the planet’s ice sheets, raising sea levels worldwide. Andrew Freedman, CNN Money, 23 Mar. 2026 The group that commissioned the report, Resilient Cities Catalyst, is an international nonprofit that works with coastal cities on ways to adapt to climate change and rising sea levels. Phil Diehl, San Diego Union-Tribune, 22 Mar. 2026 The process begins when the structure is afloat just below sea level. Carl Nolte, San Francisco Chronicle, 21 Mar. 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

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Cite this Entry

“Sea level.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/sea%20level. Accessed 29 Mar. 2026.

Kids Definition

sea level

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

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