The lowest point; time of greatest depression.
The axis of a projected conical shadow; the direction of the force of gravity at a location; down.
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.
To extend (a beehive) by adding an empty box at the base.
The area of a two-dimensional surface.
The surface (of something immaterial, especially of the mind or soul).
A building intimately associated with the land on which it is built.
The visible, external surface of a body.