surface [ˈsɚfəs]

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¹ surface noun

• an outside part or layer of something
• the upper layer of an area of land or water—usually singular
• the flat, top part of something (such as a table or desk) that you can work on

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² surface verb

• to rise to the surface of water
• to appear or become obvious after being hidden or not seen
• to put a surface on (something, such as a road)

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³ surface adjective

• involving only the parts that are easy to see or notice : superficial
• involving the removal of the surface of a large area of land to get at coal or other material that is near to the surface