The outside part or uppermost layer of something (often used when describing its texture, form, or extent)
The level top of something
The area of such an outer part or uppermost layer
The upper limit of a body of liquid
to apply an outer layer to [v SURFACED, SURFACES, SURFACING]
What is apparent on a casual view or consideration of someone or something, esp. as distinct from feelings or qualities that are not immediately obvious
A set of points that has length and breadth but no thickness