(noun, adjective, verb)


1. on the surface

- surface materials of the moon

Similar word(s): aboveground, opencast, opencut


1. the outer boundary of an artifact or a material layer constituting or resembling such a boundary

- there is a special cleaner for these surfaces

- the cloth had a pattern of red dots on a white surface

Definition categories: man–made, artefact, artifact

2. the extended two-dimensional outer boundary of a three-dimensional object

- they skimmed over the surface of the water

- a brush small enough to clean every dental surface

- the sun has no distinct surface

Definition categories: location, bound, boundary, bounds

3. the outermost level of the land or sea

- earthquakes originate far below the surface

- three quarters of the Earth's surface is covered by water

Definition categories: object, layer

4. a superficial aspect as opposed to the real nature of something

- it was not what it appeared to be on the surface

Definition categories: thought, aspect, facet

5. information that has become public

- the facts had been brought to the surface

Similar word(s): open

Definition categories: thought

6. a device that provides reactive force when in motion relative to the surrounding air; can lift or control a plane in flight

Similar word(s): aerofoil, airfoil

Definition categories: man–made, device

Sentences with surface as a noun:

- On the surface, the spy looked like a typical businessman.


1. come to the surface

Similar word(s): rise

Definition categories: motion, ascend

2. put a coat on; cover the surface of; furnish with a surface

Similar word(s): coat

Definition categories: contact, cover

3. appear or become visible; make a showing

- I hope the list key is going to surface again

Definition categories: change, appear