sea level
US /ˈsiː ˌlev.əl/
UK /ˈsiː ˌlev.əl/
1.
nivel del mar
the average height of the sea's surface, used as a standard reference point for measuring altitudes and depths on Earth
:
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Mount Everest is 8,848 meters above sea level.
El Monte Everest está a 8.848 metros sobre el nivel del mar.
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Many coastal cities are threatened by rising sea levels.
Muchas ciudades costeras están amenazadas por el aumento del nivel del mar.