surface

[1]	appear , show up , emerge , materialize , arise , rise , come up , (Colloq) pop up , crop up
[2]	pave , concrete , tarmac
[3]	come up , rise up , rise
[4]	coat
[5]	come on , come out , turn up , show up

[1]	exterior , covering , outside , top , skin , integument , facade , face , boundary , interface , superficies , side , plane
[2]	on the surface , superficially , to all appearances , at first glance , outwardly , to the casual observer , extrinsically , ostensibly
[3]	Earth's surface
[4]	open
[5]	airfoil , aerofoil , control surface