Plain vs. Plane

In geography, a plain is a flat expanse of land that generally does not change much in elevation, and are primarily treeless. Plains occur as lowlands along valleys or at the base of mountains, as coastal plains, and as plateaus or uplands.In a valley, a plain is enclosed on two sides, but in other cases a plain may be delineated by a complete or partial ring of hills, by mountains, or by cliffs.

(Mathematics) A surface containing all the straight lines that connect any two points on it.

not decorated or elaborate; simple or basic in character

A flat or level surface.

having no pretensions; not remarkable or special

A level of development, existence, or achievement

easy to perceive or understand; clear

An airplane or hydroplane.

(of a person) not beautiful or attractive

A supporting surface of an airplane; an airfoil or wing.

sheer; simple (used for emphasis)

A carpenter's tool with an adjustable blade for smoothing and leveling wood.

denoting or relating to a type of knitting stitch produced by putting the needle through the front of each stitch from left to right.

A trowel-shaped tool for smoothing the surface of clay, sand, or plaster in a mold.

used for emphasis

The plane tree.

clearly or unequivocally

(Mathematics) Of or being a figure lying in a plane

a large area of flat land with few trees

Flat; level.

mourn or lament.

To smooth or finish with a plane

Free from obstructions; open; clear

To remove with a plane

Obvious to the perception or mind; evident

To work with a plane.

Not elaborate or complicated; simple

To rise partly out of the water, as a hydroplane does at high speeds.

Marked by little or no ornamentation or decoration

To soar or glide.

Straightforward; frank or candid

To travel by airplane.

Not pretentious; unaffected.

Of a surface: flat or level.

Lacking beauty or distinction

A level or flat surface.

Not mixed with other substances; pure

(geometry) A flat surface extending infinitely in all directions (e.g. horizontal or vertical plane). Category:en:Surfaces

Common in rank or station; average; ordinary

(anatomy) An imaginary plane which divides the body into two portions.

Not dyed, twilled, or patterned

A level of existence or development.

Sheer; utter; unqualified

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. (Compare airfoil, hydrofoil.)}}

(Archaic) Having no visible elevation or depression; flat; level.

Any of 17 designated ranges of 2¹⁶ (65,536) sequential code points each.

often plains An extensive, level, usually treeless area of land.

A tool for smoothing wood by removing thin layers from the surface.

A broad level expanse, as a part of the sea floor or a lunar mare.

An airplane; an aeroplane.

Something free of ornamentation or extraneous matter.

(entomology) Any of various nymphalid butterflies, of various genera, having a slow gliding flight.

Clearly; simply

(entomology) The butterfly Bindahara phocides, family Lycaenidae, of Asia and Australasia.

Flat, level.

(countable) A deciduous tree of the genus Platanus.

Simple, unaltered.

(Northern UK) A sycamore.

Ordinary; lacking adornment or ornamentation; unembellished.

To smooth (wood) with a plane.

Of just one colour; lacking a pattern.

To move in a way that lifts the bow out of the water.

Simple in habits or qualities; unsophisticated, not exceptional, ordinary.

To glide or soar.

(of food) Having only few ingredients, or no additional ingredients or seasonings; not elaborate, without toppings or extras.

Any tree of the genus Platanus.

(computing) Containing no extended or nonprinting characters (especially in plain text).

A surface, real or imaginary, in which, if any two points are taken, the straight line which joins them lies wholly in that surface; or a surface, any section of which by a like surface is a straight line; a surface without curvature.

Obvious.

An ideal surface, conceived as coinciding with, or containing, some designated astronomical line, circle, or other curve; as, the plane of an orbit; the plane of the ecliptic, or of the equator.

Evident to one's senses or reason; manifest, clear, unmistakable.

A block or plate having a perfectly flat surface, used as a standard of flatness; a surface plate.

Downright; total, unmistakable (as intensifier).

A tool for smoothing boards or other surfaces of wood, for forming moldings, etc. It consists of a smooth-soled stock, usually of wood, from the under side or face of which projects slightly the steel cutting edge of a chisel, called the iron, which inclines backward, with an apperture in front for the escape of shavings; as, the jack plane; the smoothing plane; the molding plane, etc.

Open.

Without elevations or depressions; even; level; flat; lying in, or constituting, a plane; as, a plane surface.

Honest and without deception; candid, open; blunt.

To make smooth; to level; to pare off the inequalities of the surface of, as of a board or other piece of wood, by the use of a plane; as, to plane a plank.

Clear; unencumbered; equal; fair.

To efface or remove.

Not unusually beautiful; unattractive.

Figuratively, to make plain or smooth.

(card games) Not a trump.

Of a boat, to lift more or less out of the water while in motion, after the manner of a hydroplane; to hydroplane.

(obsolete) Full, complete in number or extent.

an aircraft that has a fixed wing and is powered by propellers or jets;

(colloquial) Simply.

(mathematics) an unbounded two-dimensional shape;

(archaic) Plainly; distinctly.

a level of existence or development;

A lamentation.

a power tool for smoothing or shaping wood

An expanse of land with relatively low relief, usually exclusive of forests, deserts, and wastelands.

a carpenter's hand tool with an adjustable blade for smoothing or shaping wood;

(archaic) field in reference to a battlefield.

cut or remove with or as if with a plane;

(obsolete) plane: a flat geometric field.

travel on the surface of water

To complain.

make even or smooth, with or as with a carpenter's plane;

To lament, bewail.

having a horizontal surface in which no part is higher or lower than another;

To level; to raze; to make plain or even on the surface.

To make plain or manifest; to explain.

To lament; to bewail; to complain.

To lament; to mourn over; as, to plain a loss.

To plane or level; to make plain or even on the surface.

To make plain or manifest; to explain.

Without elevations or depressions; flat; level; smooth; even. See Plane.

Open; clear; unencumbered; equal; fair.

Not intricate or difficult; evident; manifest; obvious; clear; unmistakable.

Void of extraneous beauty or ornament; without conspicious embellishment; not rich; simple.

In a plain manner; plainly.

Level land; usually, an open field or a broad stretch of land with an even surface, or a surface little varied by inequalities; as, the plain of Jordan; the American plains, or prairies.

A field of battle.

extensive tract of level open land;

a basic knitting stitch

express complaints, discontent, displeasure, or unhappiness;

clearly apparent or obvious to the mind or senses;

not elaborate or elaborated; simple;

lacking patterns especially in color

not mixed with extraneous elements;

free from any effort to soften to disguise;

lacking embellishment or ornamentation;

lacking stylistic embellishment;

comprehensible to the general public;

lacking in physical beauty or proportion;

unmistakably (`plain' is often used informally for `plainly');