plane
/pleɪn/noun
Definitions
A level or flat surface.
A flat surface extending infinitely in all directions (e.g. horizontal or vertical plane).
A level of existence or development. (eg, astral plane)
A roughly flat, thin, often moveable structure used to create lateral force by the flow of air or water over its surface, found on aircraft, submarines, etc.
adjective
Definitions
Of a surface: flat or level.