plane

1 of 6

noun (1)

ˈplān

[by shortening] : airplane

: one of the main supporting surfaces of an airplane

: a surface in which if any two points are chosen a straight line joining them lies wholly in that surface

: a flat or level surface

: a level of existence, consciousness, or development

on the intellectual plane

plane

2 of 6

verb (1)

planed; planing

transitive verb

: to make smooth or even : level

: to make smooth or even by use of a plane

: to remove by or as if by planing

—often used with away or off

intransitive verb

: to work with a plane

: to do the work of a plane

planer noun

plane

3 of 6

noun (2)

: a tool for smoothing or shaping a wood surface

plane

4 of 6

noun (3)

: any of a genus (Platanus of the family Platanaceae, the plane-tree family) of chiefly deciduous trees with large palmately lobed leaves, flowers in globose heads, and usually scaling bark

called also buttonwood, plane tree, sycamore

plane

5 of 6

verb (2)

planed; planing

intransitive verb

: to fly while keeping the wings motionless

: to skim across the surface of the water

: to travel by airplane

plane

6 of 6

adjective

: having no elevations or depressions : flat

: of, relating to, or dealing with geometric planes

: lying in a plane

a plane curve

Word History

Etymology

Noun (1)

Latin planum, from neuter of planus level

Verb (1)

Middle English, from Anglo-French planer, from Late Latin planare, from Latin planus level — more at floor

Noun (2)

Middle English, from Anglo-French, from Late Latin plana, from planare

Noun (3)

Middle English, from Anglo-French, from Latin platanus, from Greek platanos; probably akin to Greek platys broad — more at place

Verb (2)

Middle English, from Middle French planer, from plain level, plain

Adjective

Latin planus

First Known Use

Noun (1)

1604, in the meaning defined at sense 2a

Verb (1)

14th century, in the meaning defined at transitive sense 1a

Noun (2)

14th century, in the meaning defined above

Noun (3)

14th century, in the meaning defined above

Verb (2)

15th century, in the meaning defined at sense 1a

Adjective

14th century, in the meaning defined at sense 1

Kids Definition

plane 1 of 4

noun

ˈplān

: airplane

: a surface in which if any two points are chosen a straight line joining them lies completely in that surface

: a level of thought, existence, or development

The two stories are not on the same plane.

: a level or flat surface

a horizontal plane

plane

2 of 4

adjective

: horizontal entry 1, flat

a plane surface

plane

3 of 4

noun

: a tool that smooths wood by shaving off thin strips

plane

4 of 4

verb

planed; planing

: to smooth or level off with a tool made for smoothing

: to remove with or as if with a tool for smoothing wood

Medical Definition

plane

noun

ˈplān

: a surface that contains at least three points not all in a straight line and is such that a line drawn through any two points in it lies wholly in the surface

: an imaginary plane used to identify parts of the body or a part of the skull see frankfort horizontal plane, midsagittal plane

: a stage in surgical anesthesia

a light plane of anesthesia is maintained with cyclopropane

Journal of the American Medical Association

plane 1 of 4

noun

as in airplane

a vehicle for traveling through the air that has fixed wings for lift a plane flew overhead

Synonyms & Similar Words

Relevance

airplane
aeroplane
airliner
aircraft
jet
ship
airship
airframe
bomber
jetliner
biplane
seaplane
freighter
tractor
tanker
supersonic
liner
aerodyne
trijet
turboprop
turbojet
superjet
air taxi
trimotor
rocket plane
glider
aerospace plane
warplane
triplane
supersonic transport
towplane
amphibian
fighter
lightplane
sailplane
torpedo bomber
jump jet
air-cushion vehicle
tilt-rotor

plane

2 of 4

adjective

as in level

having a surface without bends, breaks, or irregularities you can do these tracings on any plane surface

Synonyms & Similar Words

level
flat
horizontal
smooth
even
exact
vertical
uniform
flush
straight
regular
true
aligned
plumb
alined
tabular

Antonyms & Near Antonyms

rough
bumpy
coarse
uneven
warped
lumpy
irregular
wavy
undulating
undulatory
inexact
unsmoothed
unaligned
pitted
pockmarked
pocky

plane

3 of 4

verb (1)

as in to smooth

to make free from breaks, curves, or bumps planed the wood for the picnic table perfectly smooth so that no one would get splinters

Synonyms & Similar Words

smooth
even
shave
rake
level
flatten
trim
surface
clip
crop
lay
comb
pare
card
smoothen
press
prune
spread

Antonyms & Near Antonyms

rough
bend
roughen
wrinkle
pit
dent
kink
coarsen
rumple

plane

4 of 4

verb (2)

as in to fly

to move through the air with or as if with outstretched wings an eagle planed effortlessly overhead, gliding on an air current

Synonyms & Similar Words

fly
wing
hover
sail
glide
float
drift
aviate
soar
helicopter
coast
dart
jet
flutter
orbit
cruise
rocket
sweep
waft
dive
hang
flit
catapult
stoop

Synonym Chooser

Some common synonyms of plane are even, flat, level, and smooth. While all these words mean "having a surface without bends, curves, or irregularities," plane applies to any real or imaginary flat surface in which a straight line between any two points on it lies wholly within that surface.

the plane sides of a crystal

While the synonyms even and plane are close in meaning, even applies to a surface that is noticeably flat or level or to a line that is observably straight.

trim the hedge so it is even

While in some cases nearly identical to plane, flat applies to a surface devoid of noticeable curvatures, prominences, or depressions.

the work surface must be flat

The meanings of level and plane largely overlap; however, level applies to a horizontal surface that lies on a line parallel with the horizon.

the vast prairies are nearly level

In some situations, the words smooth and plane are roughly equivalent. However, smooth applies especially to a polished surface free of irregularities.

a smooth skating rink

单词	plane
释义	plane 1 of 6 noun (1) ˈplān 1 a [by shortening] : airplane b : one of the main supporting surfaces of an airplane 2 a : a surface in which if any two points are chosen a straight line joining them lies wholly in that surface b : a flat or level surface 3 : a level of existence, consciousness, or development on the intellectual plane plane 2 of 6 verb (1) planed; planing transitive verb 1 a : to make smooth or even : level b : to make smooth or even by use of a plane 2 : to remove by or as if by planing —often used with away or off intransitive verb 1 : to work with a plane 2 : to do the work of a plane planer noun plane 3 of 6 noun (2) : a tool for smoothing or shaping a wood surface Illustration of plane ³plane plane 4 of 6 noun (3) : any of a genus (Platanus of the family Platanaceae, the plane-tree family) of chiefly deciduous trees with large palmately lobed leaves, flowers in globose heads, and usually scaling bark called also buttonwood, plane tree, sycamore plane 5 of 6 verb (2) planed; planing intransitive verb 1 a : to fly while keeping the wings motionless b : to skim across the surface of the water 2 : to travel by airplane plane 6 of 6 adjective 1 : having no elevations or depressions : flat 2 a : of, relating to, or dealing with geometric planes b : lying in a plane a plane curve Synonyms Noun (1) aeroplane [chiefly British] airplane Verb (1) even flatten level smooth smoothen Verb (2) aviate fly glide soar wing Adjective even flat flush level smooth See all Synonyms & Antonyms Example Sentences Adjective you can do these tracings on any plane surface Word History Etymology Noun (1) Latin planum, from neuter of planus level Verb (1) Middle English, from Anglo-French planer, from Late Latin planare, from Latin planus level — more at floor Noun (2) Middle English, from Anglo-French, from Late Latin plana, from planare Noun (3) Middle English, from Anglo-French, from Latin platanus, from Greek platanos; probably akin to Greek platys broad — more at place Verb (2) Middle English, from Middle French planer, from plain level, plain Adjective Latin planus First Known Use Noun (1) 1604, in the meaning defined at sense 2a Verb (1) 14th century, in the meaning defined at transitive sense 1a Noun (2) 14th century, in the meaning defined above Noun (3) 14th century, in the meaning defined above Verb (2) 15th century, in the meaning defined at sense 1a Adjective 14th century, in the meaning defined at sense 1 Phrases Containing plane aerospace plane equatorial plane Cartesian plane complex plane block plane plane angle half plane inclined plane plane geometry jack plane plane of polarization pursuit plane plane-polarized rocket plane tangent plane plane table pontoon plane focal plane London plane See More aerospace plane equatorial plane Cartesian plane complex plane block plane plane angle half plane inclined plane plane geometry jack plane plane of polarization pursuit plane plane-polarized rocket plane tangent plane plane table pontoon plane focal plane London plane See More Kids Definition plane 1 of 4 noun ˈplān 1 : airplane 2 : a surface in which if any two points are chosen a straight line joining them lies completely in that surface 3 : a level of thought, existence, or development The two stories are not on the same plane. 4 : a level or flat surface a horizontal plane plane 2 of 4 adjective : horizontal entry 1, flat a plane surface plane 3 of 4 noun : a tool that smooths wood by shaving off thin strips plane 4 of 4 verb planed; planing 1 : to smooth or level off with a tool made for smoothing 2 : to remove with or as if with a tool for smoothing wood Medical Definition plane noun ˈplān 1 a : a surface that contains at least three points not all in a straight line and is such that a line drawn through any two points in it lies wholly in the surface b : an imaginary plane used to identify parts of the body or a part of the skull see frankfort horizontal plane, midsagittal plane 2 : a stage in surgical anesthesia a light plane of anesthesia is maintained with cyclopropane Journal of the American Medical Association plane 1 of 4 noun as in airplane a vehicle for traveling through the air that has fixed wings for lift a plane flew overhead Synonyms & Similar Words Relevance airplane aeroplane airliner aircraft jet ship airship airframe bomber jetliner biplane seaplane freighter tractor tanker supersonic liner aerodyne trijet turboprop turbojet superjet air taxi trimotor rocket plane glider aerospace plane warplane triplane supersonic transport towplane amphibian fighter lightplane sailplane torpedo bomber jump jet air-cushion vehicle tilt-rotor plane 2 of 4 adjective as in level having a surface without bends, breaks, or irregularities you can do these tracings on any plane surface Synonyms & Similar Words level flat horizontal smooth even exact vertical uniform flush straight regular true aligned plumb alined tabular Antonyms & Near Antonyms rough bumpy coarse uneven warped lumpy irregular wavy undulating undulatory inexact unsmoothed unaligned pitted pockmarked pocky See More plane 3 of 4 verb (1) as in to smooth to make free from breaks, curves, or bumps planed the wood for the picnic table perfectly smooth so that no one would get splinters Synonyms & Similar Words smooth even shave rake level flatten trim surface clip crop lay comb pare card smoothen press prune spread Antonyms & Near Antonyms rough bend roughen wrinkle pit dent kink coarsen rumple See More plane 4 of 4 verb (2) as in to fly to move through the air with or as if with outstretched wings an eagle planed effortlessly overhead, gliding on an air current Synonyms & Similar Words fly wing hover sail glide float drift aviate soar helicopter coast dart jet flutter orbit cruise rocket sweep waft dive hang flit catapult stoop Synonym Chooser Some common synonyms of plane are even, flat, level, and smooth. While all these words mean "having a surface without bends, curves, or irregularities," plane applies to any real or imaginary flat surface in which a straight line between any two points on it lies wholly within that surface. the plane sides of a crystal While the synonyms even and plane are close in meaning, even applies to a surface that is noticeably flat or level or to a line that is observably straight. trim the hedge so it is even While in some cases nearly identical to plane, flat applies to a surface devoid of noticeable curvatures, prominences, or depressions. the work surface must be flat The meanings of level and plane largely overlap; however, level applies to a horizontal surface that lies on a line parallel with the horizon. the vast prairies are nearly level In some situations, the words smooth and plane are roughly equivalent. However, smooth applies especially to a polished surface free of irregularities. a smooth skating rink
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plane

noun (1)

verb (1)

noun (2)

Illustration of plane

noun (3)

verb (2)

adjective

Synonyms

Example Sentences

Word History

Phrases Containing plane

Kids Definition

noun

adjective

noun

verb

Medical Definition

noun

noun

adjective

verb (1)

verb (2)

Synonym Chooser