Nadir vs. Zenith

Difference Between Nadir and Zenith
Nadirnoun
The point of the celestial sphere, directly opposite the zenith; inferior pole of the horizon; point of the celestial sphere directly under the place of observation.
Zenithnoun
(astronomy) The point in the sky vertically above a given position or observer; the point in the celestial sphere opposite the nadir.
Nadirnoun
(figuratively) The lowest point; time of greatest depression.
Zenithnoun
(astronomy) The highest point in the sky reached by a celestial body.
Nadirnoun
(astronomy) The axis of a projected conical shadow; the direction of the force of gravity at a location; down.
The nadir of the sun is the axis of the shadow projected by the Earth.Zenithnoun
(by extension) Highest point or state; peak.
Nadirnoun
An empty box added beneath a full one in a beehive to give the colony more room to expand or store honey.
Zenithnoun
the point above the observer that is directly opposite the nadir on the imaginary sphere against which celestial bodies appear to be projected
Nadirverb
To extend (a beehive) by adding an empty box at the base.
Nadirnoun
an extreme state of adversity; the lowest point of anything
Nadirnoun
the point below the observer that is directly opposite the zenith on the imaginary sphere against which celestial bodies appear to be projected