surface
sur-face
verb
To rise to the top of a liquid or become visible or known.
"The submarine surfaced after hours."
noun
The outer or top part of something, or the area it covers.
"The table's surface felt smooth."
Thesaurus
Synonyms: coat, control surface, aerofoil, airfoil, open, come up, rise, rise up, aboveground, opencut, opencast, grade-constructed
Antonyms: overhead, subsurface