Dictionary definition · surface
noun
- 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 extended two-dimensional outer boundary of a three-dimensional object"they skimmed over the surface of the water"
- the outermost level of the land or sea"earthquakes originate far below the surface"
- a superficial aspect as opposed to the real nature of something"it was not what it appeared to be on the surface"
- information that has become public"all the reports were out in the open"
- a device that provides reactive force when in motion relative to the surrounding air; can lift or control a plane in flight
verb
- come to the surface
- put a coat on; cover the surface of; furnish with a surface"coat the cake with chocolate"
- appear or become visible; make a showing"She turned up at the funeral"
adjective
- on the surface"surface materials of the moon"
Source: Open English WordNet (CC BY 4.0).