[sur-fis] 
noun, adjective, verb, -faced, -fac⋅ing.| 1. | the outer face, outside, or exterior boundary of a thing; outermost or uppermost layer or area. |
| 2. | any face of a body or thing: the six surfaces of a cube. |
| 3. | extent or area of outer face; superficial area. |
| 4. | the outward appearance, esp. as distinguished from the inner nature: to look below the surface of a matter. |
| 5. | Geometry. any figure having only two dimensions; part or all of the boundary of a solid. |
| 6. | land or sea transportation, rather than air, underground, or undersea transportation. |
| 7. | Aeronautics. an airfoil. |
| 8. | of, on, or pertaining to the surface; external. |
| 9. | apparent rather than real; superficial: to be guilty of surface judgments. |
| 10. | of, pertaining to, or via land or sea: surface mail. |
| 11. | Linguistics. belonging to a late stage in the transformational derivation of a sentence; belonging to the surface structure. |
| 12. | to finish the surface of; give a particular kind of surface to; make even or smooth. |
| 13. | to bring to the surface; cause to appear openly: Depth charges surfaced the sub. So far we've surfaced no applicants. |
| 14. | to rise to the surface: The submarine surfaced after four days. |
| 15. | to work on or at the surface. |
surface sur·face (sûr'fəs)
n.
The outer or topmost part of a solid structure.