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| plane [ playn ] |
noun (plural planes) |
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| Definition: |
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1. flat surface: a flat or level surface
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2. level of reality: a particular level of existence, mental activity, or achievement
  never felt he was on the same intellectual plane as the others
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3. mathematics two-dimensional surface or space: a two-dimensional surface in which a straight line between any two points will lie wholly on that surface
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4. aviation wing or hydrofoil: a flat surface that provides lift for an aircraft or hydroplane, e.g. a wing or a hydrofoil
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adjective |
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| Definition: |
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1. flat: flat or level
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2. mathematics two-dimensional: lying within a plane
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intransitive verb (past and past participle planed, present participle plan·ing, 3rd person present singular planes) |
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| Definition: |
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1. skim over surface of water: to rise partly out of water and skim along the surface
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2. aviation birds glide: to glide through the air without propulsion
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| [Early 17th century. < Latin planus "flat"] |
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| plane·ness noun |
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