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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Thwaites already accounts for about four percent of global annual sea level rise. Neetika Walter, Interesting Engineering, 4 Feb. 2026 As sea levels rise, a family on a remote island rescues a mysterious woman. Los Angeles Times, 4 Feb. 2026 And Thwaites acts as a cork in the West Antarctic Ice Sheet, which contains enough water to raise sea levels by nearly 17 feet. Christian Elliott, The Atlantic, 31 Jan. 2026 Rising sea levels and an increase in ocean temperatures, caused by greenhouse gas emissions, fuel more powerful storms. Maleena Muzio, Hartford Courant, 31 Jan. 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 8 Feb. 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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