plain

1
[ pleyn ]
/ pleɪn /

adjective, plain·er, plain·est.

adverb

clearly and simply: He's just plain stupid.

noun

an area of land not significantly higher than adjacent areas and with relatively minor differences in elevation, commonly less than 500 feet (150 meters), within the area.
The Plains. Great Plains.

Origin of plain

1
1250–1300; Middle English (adj., adv., and noun) < Old French (adj. and noun) < Latin plānus flat, level, plānum flat country

synonym study for plain

10. See homely.

OTHER WORDS FROM plain

plain·ly, adverb plain·ness, noun

WORDS THAT MAY BE CONFUSED WITH plain

plain plan plane

Example sentences from the Web for plainness

British Dictionary definitions for plainness (1 of 2)

plain 1
/ (pleɪn) /

adjective

noun

adverb

(intensifier) just plain tired
See also plains

Derived forms of plain

plainly, adverb plainness, noun

Word Origin for plain

C13: from Old French: simple, from Latin plānus level, distinct, clear

British Dictionary definitions for plainness (2 of 2)

plain 2
/ (pleɪn) /

verb

a dialect or poetic word for complain

Word Origin for plain

C14 pleignen, from Old French plaindre to lament, from Latin plangere to beat

Scientific definitions for plainness

plain
[ plān ]

An extensive, relatively level area of land. Plains are present on all continents except Antarctica and are most often located in the interior regions. Because they can occur at almost any altitude or latitude, plains can be humid and forested, semiarid and grass-covered, or arid.
A broad, level expanse, such as an area of the sea floor or a lunar mare.

Idioms and Phrases with plainness

plain