water level

the surface level of any body of water.

the level to which a vessel is immersed; water line.

Origin of water level

First recorded in 1555–65

Evaporation lowers the water-level, especially in hot, dry summers.

Earth and Sky Every Child Should Know |Julia Ellen Rogers
The lowering of the water-level in the meter benefits the consumer at the expense of the gas company.

Gas-Engines and Producer-Gas Plants |R. E. Mathot
In his company we visited the kitchens, the pantler's offices, and penetrated even to the dungeons below the water-level.

'Farewell, Nikola' |Guy Boothby
The joint between the copper wire and the zinc or aluminium plate should naturally be above the water-level.

Acetylene, The Principles Of Its Generation And Use |F. H. Leeds

A weird feeling it is squatting thus at water-level and watching the wavelets dance by or dash over our two-inch free-board.

Unexplored Spain |Abel Chapman

water level

the level reached by the surface of a body of water

the water line of a boat or ship