plane
noun
an aircraft that has a fixed wing and is powered by propellers or jets
“the flight was delayed due to trouble with the airplane”
(mathematics) an unbounded two-dimensional shape
“we will refer to the plane of the graph as the X-Y plane”
“any line joining two points on a plane lies wholly on that plane”
Synonymssheeta level of existence or development
“he lived on a worldly plane”
a power tool for smoothing or shaping wood
a carpenter's hand tool with an adjustable blade for smoothing or shaping wood
“the cabinetmaker used a plane for the finish work”
verb
adjective
having a surface without slope, tilt in which no part is higher or lower than another
“a flat desk”
“acres of level farmland”
Source: WordNet 3.1, Princeton University
