sur
face
Plural
surfaces
1
the outer part or top layer of something that you can touch or see
- He used a soft cloth to clean the dusty surface of the bookshelf.
- The artist painted intricate patterns on the surface of the canvas.
- The pot was boiling, and bubbles rose to the surface of the water.
- The surface of the lake was calm and reflective in the morning light.
- The table had a glossy surface that reflected the light beautifully.
2
(geometry) any of the two-dimensional faces of a three-dimensional figure
- A cube has six identical square surfaces.
- Calculate the area of each surface of the rectangular prism.
- The surface of the pyramid includes four triangular sides and a square base.
- In CAD software, you can extrude a 2D shape to create a 3D surface.
- The sphere's surface is perfectly smooth, with no edges or corners.
3
the outermost level of the land or sea
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4
the outward appearance or the visible part of a person, thing, or situation, which may not reflect its true nature
- They only saw the surface of the situation and didn’t realize the challenges.
- On the surface, they were the perfect couple, but there were many problems beneath.
- He kept a calm surface, but inside he was nervous.
- On the surface, the company seemed successful, but there were hidden issues.
- The surface of the problem looked simple, but it was more complicated.
5
information that has become public
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6
a device that provides reactive force when in motion relative to the surrounding air; can lift or control a plane in flight
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