PLANE
verb
(of a bird or an airborne object) soar without moving the wings; glide.
"a bird planed down toward the water below"
PLANE
n.
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Mathematics A surface containing all the straight lines that connect any two points on it.
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A flat or level surface.
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A level of development, existence, or achievement: scholarship on a high plane.
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An airplane or hydroplane.
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A supporting surface of an airplane; an airfoil or wing.
adj.
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Mathematics Of or being a figure lying in a plane: a plane curve.
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Flat; level. See Synonyms at level.
https://www.thefreedictionary.com/plane