n. a device that provides reactive force when in motion relative to the surrounding air; can lift or control a plane in flight

n. the outer boundary of an artifact or a material layer constituting or resembling such a boundary; "there is a special cleaner for these surfaces"; "the cloth had a pattern of red dots on a white surface"

n. information that has become public; "all the reports were out in the open"; "the facts had been brought to the surface"

n. a superficial aspect as opposed to the real nature of something; "it was not what it appeared to be on the surface"

n. the extended two-dimensional outer boundary of a three-dimensional object; "they skimmed over the surface of the water"; "a brush small enough to clean every dental surface"; "the sun has no distinct surface"

n. the outermost level of the land or sea; "earthquakes originate far below the surface"; "three quarters of the Earth's surface is covered by water"

n. term used in CAD to refer to the external geometry of an object

n. a programming language that interfaces to a database engine

n. [the outer boundary of an object or a layer]

v. appear or become visible; make a showing; "She turned up at the funeral"; "I hope the list key is going to surface again"

v. put a coat on; cover the surface of; furnish with a surface; "coat the cake with chocolate"

v. come to the surface

adj. on the surface; "surface materials of the moon"