A flat surface on which a straight line joining any two points on it would wholly lie.
Our plane landed in Chicago just after six.
Passengers boarded the plane, eager to embark on their journey to a new destination.
The carpenter smoothed the surface of the wood using a hand plane.
In geometry, a plane is a flat, two-dimensional surface with infinite length and width.
Meteorologists track weather patterns in the upper atmosphere using data collected from weather planes.