level

[ˈlɛv&+{ə}l]
adj
on a horizontal plane
having a surface of completely equal height
being of the same height as something else
(of quantities to be measured, as in recipes) even with the top of the cup, spoon, etc
equal to or even with (something or someone else)
not having or showing inconsistency or irregularities
Also called: level-headed even-tempered; steady
vb
to make (a surface) horizontal, level, or even
to make (two or more people or things) equal, as in position or status
to raze to the ground
to knock (a person) down by or as if by a blow
to direct (a gaze, criticism, etc) emphatically at someone
to be straightforward and frank
to manoeuvre an aircraft into a horizontal flight path after a dive, climb, or glide
to aim (a weapon) horizontally
to determine the elevation of a section of (land), sighting through a levelling instrument to a staff at successive pairs or points
n
a horizontal datum line or plane
a device, such as a spirit level, for determining whether a surface is horizontal
a surveying instrument consisting basically of a telescope with a spirit level attached, used for measuring relative heights of landSee Abney level See dumpy level
a reading of the difference in elevation of two points taken with such an instrument
position or status in a scale of values
amount or degree of progress; stage
a specified vertical position; altitude
a horizontal line or plane with respect to which measurement of elevation is based
sea level
a flat even surface or area of land
a horizontal passage or drift in a mine
any of the successive layers of material that have been deposited with the passage of time to build up and raise the height of the land surface
the ratio of the magnitude of a physical quantity to an arbitrary magnitude
sound-pressure level