The sea level
Example: Sea level measures height of ocean surface relative to land
Definition
"The sea level" refers to the average height of the ocean's surface, used as a standard to measure elevation and depth on Earth. It serves as a baseline for geographical and environmental studies, indicating the interface between the ocean and the land.
Etymology
The term "the sea level" originates from the combination of 'sea,' meaning the large body of saltwater covering most of the Earth's surface, and 'level,' meaning a flat or even surface. The phrase developed to describe the average height of the ocean's surface relative to land, a concept essential for navigation and mapping.
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"The sea level" appears in the Vocaplus list "English - Environment - (A1-C2) - set 1", containing 100 commonly used words.
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