The average height of the ocean's surface; used as a starting point for measuring the height of land and the depth of water

a plan or diagram showing the layout of a building, room, or area as seen from above; floor plan; blueprints

a flat surface that is perpendicular to a vertical line; a level surface like that of still water

a mirror with a flat reflective surface; the type used for daily household mirrors

the branch of geometry that deals with the properties of flat shapes and figures; planimetry

a flat surface that is perpendicular to the vertical direction or parallel to the horizon

a wave whose surfaces of constant phase are parallel planes

the angle formed by two intersecting lines on a flat surface

the complex plane in mathematics

a plane that touches a curved surface at exactly one point

liquid crystal display flat panel monitor

(math.) hyperplane

Basic Multilingual Plane (BMP); the first 65,536 code points of the Unicode standard

(mathematics) complex plane; Argand plane

the average level of the surface of one or more of Earth's bodies of water from which heights such as elevation may be measured

a triangle that exists within a two-dimensional plane

Traditional information sources that use paper and ink, such as newspapers and magazines, as opposed to electronic media like radio, television, and the internet

A curve that lies entirely within a single plane, such as a circle or a parabola.

A method of surveying small areas where the earth's curvature is ignored and the surface is treated as a flat plane

Artworks created on a flat surface, such as paintings, calligraphy, prints, and photographs

The art and profession of creating visual content to communicate messages, such as in advertisements, books, or digital media

general layout or site plan for a construction project or development