AskDefine | Define plane

Dictionary Definition

plane adj : having a horizontal surface in which no part is higher or lower than another; "a flat desk"; "acres of level farmland"; "a plane surface" [syn: flat, level]


1 an aircraft that has a fixed wing and is powered by propellers or jets; "the flight was delayed due to trouble with the airplane" [syn: airplane, aeroplane]
2 (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" [syn: sheet]
3 a level of existence or development; "he lived on a worldly plane"
4 a power tool for smoothing or shaping wood [syn: planer, planing machine]
5 a carpenter's hand tool with an adjustable blade for smoothing or shaping wood; "the cabinetmaker used a plane for the finish work" [syn: carpenter's plane, woodworking plane]


1 cut or remove with or as if with a plane; "The machine shaved off fine layers from the piece of wood" [syn: shave]
2 travel on the surface of water [syn: skim]
3 make even or smooth, with or as with a carpenter's plane; "plane the top of the door"

User Contributed Dictionary

see Plane



  • /pleɪn/, /pl̩eɪn/
  • Rhymes: -eɪn


Etymology 1

From planum ‘flat surface’, a noun use of the neuter of planus ‘plain’. The word was introduced in the seventeenth century to distinguish the geometrical senses from the other senses of plain.


  1. Of a surface: Perfectly flat or level.
Of a surface: Perfectly flat or level.
  • Czech: plochý, rovinný
  • Danish: plan
  • Dutch: vlak
  • Finnish: tasainen
  • German: eben
  • Greek: επίπεδος [e̞ˈpipe̞ˌðo̞s] , ομαλός [ˌo̞maˈlo̞s] , λείος [ˈliˌo̞s]
  • Hebrew: מישורי (mishori)
  • Norwegian: plan
  • Portuguese: plano
  • Russian: плоский, ровный
  • Swedish: plan
  • Vietnamese: bằng, phẳng, bằng phẳng


  1. A flat surface extending infinitely in all directions.
  2. A level of existence. (eg, astral plane)
  3. A roughly flat, thin, often moveable structure used to create lateral force by the flow of air or water over its surface, found on aircraft, submarines, etc.
flat surface extending infinitely in all directions
level of existence
  • Danish: plan
  • Dutch: vlak
  • Finnish: taso
  • German: Ebene
  • Greek: επίπεδο [e̞ˈpipe̞ˌðo̞]
  • Italian: piano
  • Norwegian: plan
  • Polish: wymiar
  • Russian: уровень (úroven’)
  • Slovak: rovina
  • Swedish: plan
  • Vietnamese: trình độ, mức
structure to create lateral force
  • Finnish: siipi

Etymology 2

From Old (and modern) plane, from late Latin plana ‘planing tool’, from planare.


  1. A tool for smoothing wood by removing thin layers from the surface.
a tool
Related terms


  1. To smooth (wood) with a plane.
to smooth with a plane

Etymology 3

Abbreviated from aeroplane.


  1. An airplane; an aeroplane.
Derived terms


  1. To move in a way that lifts the bow of a boat out of the water.
  2. To glide or soar.
to move in a way that lifts the bow of a boat out of the water
to glide
  • Czech: plachtit
  • Finnish: liitää, liukua
  • German: gleiten
  • Russian: парить

Etymology 4

From Old (and modern) French plane, from Latin platanus, from Greek πλατανος, from πλατος ‘broad’.


  1. A deciduous tree of the genus Platanus.
deciduous tree




Extensive Definition

Plane or Planes may refer to:

Physical objects

  • Airplane (Aeroplane), a powered fixed-wing aircraft
  • Plane (tool), a tool for shaving wood
  • Platanus, a genus of trees with the common name "plane"
  • Acer pseudoplatanus, a tree species sometimes called "plane"
  • Planes, a genus of crabs in the family Grapsidae called "weed crabs", containing e.g. the Blue Pacific weed crab (P. cyaneus) and the Gulfweed crab (P. minutus)



See also

plane in German: Plane
plane in French: Plane (homonymie)

Synonyms, Antonyms and Related Words

aeroplane, aircraft, airliner, airplane, alabaster, amount, aspire, avion, beading plane, become airborne, bench plane, billiard table, block plane, bowling alley, bowling green, caliber, capping plane, claw skyward, compass, core-box plane, cut, dab, dado plane, dead flat, dead level, degree, dovetail plane, downy, drag, dress, dub, earth, edge plane, equalize, esplanade, even, extent, flat, flatland, flatten, flattened, float, floor, flush, fly, fly aloft, flying machine, fore plane, gain altitude, glabrate, glabrescent, glabrous, glass, glide, grade, grease, grooving plane, ground, hang, harrow, heavier-than-air craft, height, homaloid, homaloidal, horizontal, horizontal axis, horizontal fault, horizontal line, horizontal parallax, horizontal plane, horizontal projection, hover, ice, interval, ivory, jack plane, jet plane, jointer, kite, lay, leap, leave the ground, ledge, leiotrichous, level, level line, level plane, lubricate, mahogany, marble, mark, mean sea level, measure, mow, notch, nuance, oil, parterre, pas, peg, period, pitch, plain, planer, planing machine, planish, plaster, plateau, platform, point, poise, prairie, proportion, rabbet plane, range, ratio, reach, reed plane, regular, remove, rolled, round, routing plane, rung, sash plane, satin, scale, scope, scraper plane, scrub plane, sea level, sea of grass, shade, shadow, shave, ship, silk, skate, skid, skim, slide, slip, smooth, smooth down, smooth out, smooth-shaven, smooth-textured, smoothed out, smoothen, smoothened, soar, space, spire, squashed, squashed flat, stair, standard, step, steppe, stint, suave, table, tabloid, tabular, take off, tennis court, terrace, thumb plane, tread, trenching plane, trodden, trodden flat, trying plane, unbroken, uniform, uninterrupted, unrough, unroughened, unruffled, velvet, water level, zoom
Privacy Policy, About Us, Terms and Conditions, Contact Us
Permission is granted to copy, distribute and/or modify this document under the terms of the GNU Free Documentation License, Version 1.2
Material from Wikipedia, Wiktionary, Dict
Valid HTML 4.01 Strict, Valid CSS Level 2.1