An abstract sphere of infinite radius which serves as the imaginary backdrop for celestial objects, and of which the visible sky is one hemisphere.
the figure of the universe as an imaginary sphere whose center is the Earth
A flat surface extending infinitely in all directions (e.g. horizontal or vertical 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. (Compare wing, airfoil, hydrofoil.)
A deciduous tree of the genus Platanus.
A level of existence or development.
An imaginary plane which divides the body into two portions.
A sycamore.
Any of 17 designated ranges of 2¹⁶ (65,536) sequential code points each.
A level or flat surface.
An airplane; an aeroplane.
The butterfly Bindahara phocides, family Lycaenidae, of Asia and Australasia.
A tool for smoothing wood by removing thin layers from the surface.
Any of various nymphalid butterflies, of various genera, having a slow gliding flight.
Of a surface: flat or level.
To glide or soar.
To smooth (wood) with a plane.
To move in a way that lifts the bow out of the water.