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.
And with climate change, rising sea levels now threaten the structural integrity of the aging dome. Brad Lendon, CNN Money, 4 Nov. 2025 Antarctica is the subject of intense scrutiny by climate scientists due to its potential to significantly contribute to sea level rise as global temperatures continue to warm. Julia Jacobo, ABC News, 3 Nov. 2025 For instance, the Bangladesh delta, one of the most fertile and densely populated areas in the world, is already experiencing problems, including salinity intrusion, rising sea levels and the loss of arable land. Pintu Kumar Mahla, The Conversation, 3 Nov. 2025 At high altitudes, UV exposure is more than double what you would be exposed to at sea level, increasing the risk of skin damage and premature aging. Iona Brannon, Travel + Leisure, 2 Nov. 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 9 Nov. 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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