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 final blast triggered a tsunami as high as 20 meters above sea level. David Bressan, Forbes.com, 22 May 2025 The work focuses on the storm's activity in a region of Earth's ionosphere called the E layer, which sits in the upper atmosphere about 56 miles to 75 miles (90 to 120 kilometers) above sea level. Julian Dossett, Space.com, 20 May 2025 Around 230 million people live less than 1 meter (3.2 feet) above sea level. Laura Paddison, CNN Money, 20 May 2025 Our second port of call would give us access to an ancient Greco-Roman theater, a village with cinematic ties, vineyards 800 meters above sea level, and the largest mountain of its kind in Europe. Laura Itzkowitz, AFAR Media, 20 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

Browse Nearby Words

Cite this Entry

“Sea level.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/sea%20level. Accessed 2 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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