Meaning & use
sea level
The average height of the ocean's surface, used as a standard reference point for measuring land elevation.
See it in a sentence
The city sits barely two meters above sea level, so it floods easily during storms.
Mountaineers often note how oxygen becomes scarce at altitudes far above sea level.
A note on using this word
Sea level is usually written as two words as a noun, but hyphenated as a modifier before another noun, as in 'sea-level rise'.
Words with a similar meaning
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