The heads side of a coin, or the side of a medal or badge that has the principal design.
A proposition obtained by obversion, e.g. All men are mortal => No man is immortal.
Corresponding; complementary.
Having the base, or end next to the attachment, narrower than the top.
Turned or facing toward the observer.
The visible, external surface of a body.
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.