-
The outer boundary of an artifact or a material layer constituting or resembling such a boundary
-
A device that provides reactive force when in motion relative to the surrounding air; can lift or control a plane in flight
-
A superficial aspect as opposed to the real nature of something
-
Information that has become public
-
The extended two-dimensional outer boundary of a three-dimensional object
-
The outermost level of the land or sea
-
Appear or become visible; make a showing
-
Put a coat on; cover the surface of; furnish with a surface
-
Come to the surface
-
On the surface