plane - definition in the American English Dictionary - Cambridge Dictionaries Online (US)

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English definition of “plane”

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plane

noun [C]  us   /pleɪn/

plane noun [C] (AIRCRAFT)

(also airplane) a vehicle that is designed for air travel and that has wings and one or more engines: Shelley’s plane is due in at 10, but it’s a half-hour late.

plane noun [C] (SURFACE)

geometry a flat surface that continues in all directions

plane noun [C] (LEVEL)

a level or standard: Once we got a new financial manager, our business meetings were conducted on a much higher plane.

plane noun [C] (TOOL)

a tool with a blade in a flat surface that is rubbed against wood to cut away rough parts and make it smooth
(Definition of plane from the Cambridge Academic Content Dictionary © Cambridge University Press)
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