Definition of surfaces:
(n) :
The overside or up-side of a flat object such as a table, or of a liquid.
(n) :
The outside hull of a tangible object.
(n) :
(figurative) Outward or external appearance.
(v) :
(transitive) To provide with a surface; to apply a surface to.
(v) :
(intransitive) To rise to the surface.
(v) :
(transitive) To bring to the surface.