surface

[ sur-fis ]

noun

1. the outer face, outside, or exterior boundary of a thing; outermost or uppermost layer or area.
2. any face of a body or thing:

   the six surfaces of a cube.

3. extent or area of outer face; superficial area.
4. the outward appearance, especially as distinguished from the inner nature:

   to look below the surface of a matter.

5. Geometry. any figure having only two dimensions; part or all of the boundary of a solid.
6. land or sea transportation, rather than air, underground, or undersea transportation.
7. Aeronautics. an airfoil.

adjective

1. of, on, or pertaining to the surface; external.
2. apparent rather than real; superficial:

   to be guilty of surface judgments.

3. of, relating to, or via land or sea:

   surface mail.

4. Linguistics. belonging to a late stage in the transformational derivation of a sentence; belonging to the surface structure.

verb (used with object)

, sur·faced, sur·fac·ing.

1. to finish the surface of; give a particular kind of surface to; make even or smooth.
2. to bring to the surface; cause to appear openly:

   Depth charges surfaced the sub. So far we've surfaced no applicants.

verb (used without object)

, sur·faced, sur·fac·ing.

1. to rise to the surface:

   The submarine surfaced after four days.

2. to work on or at the surface.

surface

/ ˈsɜːfɪs /

noun

1. 1. the exterior face of an object or one such face
   2. ( as modifier )

      surface gloss

2. 1. the area or size of such a face
   2. ( as modifier )

      surface measurements

3. material resembling such a face, with length and width but without depth
4. 1. the superficial appearance as opposed to the real nature
   2. ( as modifier )

      a surface resemblance

5. geometry
   1. the complete boundary of a solid figure
   2. a continuous two-dimensional configuration
6. 1. the uppermost level of the land or sea
   2. ( as modifier )

      surface transportation

7. come to the surface
   to emerge; become apparent
8. on the surface
   to all appearances

verb

1. to rise or cause to rise to or as if to the surface (of water, etc)
2. tr to treat the surface of, as by polishing, smoothing, etc
3. tr to furnish with a surface
4. intr mining
   1. to work at or near the ground surface
   2. to wash surface ore deposits
5. intr to become apparent; emerge
6. informal.
   intr
   1. to wake up
   2. to get up

Derived Forms

• ˈsurfacer, noun
• ˈsurfaceless, adjective

Other Words From

• surface·less adjective
• surfac·er noun
• non·surface noun adjective
• un·surfaced adjective

Word History and Origins

Origin of surface¹

First recorded in 1605–15; from French; equivalent to sur- ¹ + face; apparently modeled on Latin superficies superficies

Word History and Origins

Origin of surface¹

C17: from French, from sur on + face face , probably on the model of Latin superficies

Idioms and Phrases

see on the surface ; scratch the surface .

Example Sentences

As the Arctic warms at a faster rate than the rest of the planet, Earth’s overall surface becomes less reflective and thereby increases the absorption of solar radiation.

From Salon

One of campaigners' main concerns in regards to landmines is the danger these weapons present to civilians, killing indiscriminately as they are buried underground or scattered on the surface.

From BBC

Greater cell density induces stress that leads to a quicker breakdown of not only synNotch in particular, but also cell surface sensors in general.

From Science Daily

In atmospheric science, the boundary layer of the atmosphere is the region closest to the Earth's surface.

From Science Daily

For example, drought prompts plants to thicken the waxy cuticle layer on leaf surfaces.

From Science Daily

Related Words

• area
• expanse
• exterior
• facade
• façade
• face
• level
• side
• skin
• top