the outer boundary of an artifact or a material layer constituting or resembling such a boundary | a piece of furniture that provides a place to sleep |
a device that provides reactive force when in motion relative to the surrounding air; can lift or control a plane in flight | a plot of ground in which plants are growing |
a superficial aspect as opposed to the real nature of something | a foundation of earth or rock supporting a road or railroad track |
information that has become public | the flat surface of a printing press on which the type form is laid in the last stage of producing a newspaper or magazine or book etc. |
the extended two-dimensional outer boundary of a three-dimensional object | single thickness of usually some homogeneous substance |
the outermost level of the land or sea | a stratum of ore or coal thick enough to be mined with profit |
| a depression forming the ground under a body of water |
| (geology) a stratum of rock (especially sedimentary rock) |