See also: Plain

English

Pronunciation

Etymology 1

From Middle English pleyn, borrowed from Anglo-Norman pleyn, playn, Middle French plain, plein, and Old French plain, from Latin plānus (“flat, even, level, plain”). Doublet of llano, piano, plane, and plan.

Alternative forms

Adjective

a plain bagel

plain (comparative plainer, superlative plainest)

  1. (now rare, regional) Flat, level. [from 14th c.]
    Synonyms: even, planar, plane
    • 1611, The Holy Bible, […] (King James Version), London: […] Robert Barker, […], →OCLC, Isaiah 40:4:
      The crooked shall be made straight, and the rough places plain.
    • 1790, George Shaw, Speculum Linnaeanum, sive Zoologiae Linnaeanae illustratio:
      The Vampyre Bat. Tailless bat with the nose plain, and the flying-membrane divided between the thighs.
  2. Simple, unaltered.
    Synonyms: no-frills, simple; see also Thesaurus:bare-bones
    1. Ordinary; lacking adornment or ornamentation; unembellished. [from 14th c.]
      Synonyms: austere, simple; see also Thesaurus:unadorned
      Antonyms: decorative, exotic, fancy, ornate
      He was dressed simply in plain black clothes.
      a plain tune
      • 2013 September–October, Henry Petroski, “The Evolution of Eyeglasses”, in American Scientist:
        The ability of a segment of a glass sphere to magnify whatever is placed before it was known around the year 1000, when the spherical segment was called a reading stone, essentially what today we might term a frameless magnifying glass or plain glass paperweight.
    2. Of just one colour; lacking a pattern.
      Synonyms: monochrome, unicolor; patternless, unpatterned
      a plain pink polycotton skirt
    3. Simple in habits or qualities; unsophisticated, not exceptional, ordinary. [from 16th c.]
      Synonyms: normal, ordinary; see also Thesaurus:normal
      They're just plain people like you or me.
      • 1654, Henry Hammond, Of Fundamentals:
        plain yet pious Christians
      • 1861, Abraham Lincoln, Message to Congress in Special Session, July 4th:
        the plain people
    4. (of food) Having only few ingredients, or no additional ingredients or seasonings; not elaborate, without toppings or extras. [from 17th c.]
      Synonym: unseasoned
      Would you like a poppy bagel or a plain bagel?
    5. (computing) Containing no extended or nonprinting characters (especially in plain text). [from 20th c.]
  3. Obvious.
    Synonyms: blatant, ostensible; see also Thesaurus:obvious, Thesaurus:explicit
    1. Evident to one's senses or reason; manifest, clear, unmistakable. [from 14th c.]
      • 1843 April, Thomas Carlyle, “ch. XV, Practical — Devotional”, in Past and Present, American edition, Boston, Mass.: Charles C[offin] Little and James Brown, published 1843, →OCLC, book II (The Ancient Monk):
        In fact, by excommunication or persuasion, by impetuosity of driving or adroitness in leading, this Abbot, it is now becoming plain everywhere, is a man that generally remains master at last.
    2. Downright; total, unmistakable (as intensifier). [from 14th c.]
      Synonyms: darned, stinking; absolute, complete; see also Thesaurus:damned, Thesaurus:total
      His answer was just plain nonsense.
  4. Open.
    1. Honest and without deception; candid, open; blunt. [from 14th c.]
      Synonyms: frank, sincere; see also Thesaurus:honest
      Let me be plain with you: I don't like her.
      • 1577, Socrates Scholasticus [i.e., Socrates of Constantinople], “Constantinus the Emperour Summoneth the Nicene Councell, it was Held at Nicæa a Citie of Bythnia for the Debatinge of the Controuersie about the Feast of Easter, and the Rootinge out of the Heresie of Arius”, in Eusebius Pamphilus, Socrates Scholasticus, Evagrius Scholasticus, Dorotheus, translated by Meredith Hanmer, The Avncient Ecclesiasticall Histories of the First Six Hundred Yeares after Christ, Wrytten in the Greeke Tongue by Three Learned Historiographers, Eusebius, Socrates, and Euagrius. [...], book I (The First Booke of the Ecclesiasticall Historye of Socrates Scholasticvs), imprinted at London: By Thomas Vautroullier dwelling in the Blackefriers by Ludgate, →OCLC, page 225:
        [VV]e are able with playne demonſtration to proue, and vvith reaſon to perſvvade that in tymes paſt our fayth vvas alike, that then vve preached thinges correſpondent vnto the forme of faith already published of vs, ſo that none in this behalfe can repyne or gaynesay vs.
      • c. 1603–1606, William Shakespeare, “The Tragedie of King Lear”, in Mr. William Shakespeares Comedies, Histories, & Tragedies […] (First Folio), London: […] Isaac Iaggard, and Ed[ward] Blount, published 1623, →OCLC, [Act II, scene v]:
        an honest mind, and plain, he must speak truth
      • 1749, Henry Fielding, The History of Tom Jones, a Foundling, volume (please specify |volume=I to VI), London: A[ndrew] Millar, […], →OCLC:
        The Quaker was no sooner assured by this fellow of the birth and low fortune of Jones, than all compassion for him vanished; and the honest plain man went home fired with no less indignation than a duke would have felt at receiving an affront from such a person.
    2. Clear; unencumbered; equal; fair.
      • 1711, Henry Felton, Dissertation on Reading the Classics:
        Our troops beat an army in plain fight.
  5. Not unusually beautiful; unattractive. [from 17th c.]
    Antonyms: good-looking; repulsive; see also Thesaurus:beautiful, Thesaurus:ugly
    Throughout high school she worried that she had a rather plain face.
    • 1927, Ernest Bramah [pseudonym; Ernest Brammah Smith], Max Carrados Mysteries:
      Up to that time the girl had never really done her hair, and she regarded boots merely as things to protect the feet. Suddenly it dawned on her that she was considered plain and that she diffused an atmosphere of intellectual frost.
  6. (card games) Not a trump.
Derived terms
Translations

Adverb

plain (not comparable)

  1. (colloquial) Simply.
    It was just plain stupid.
    I plain forgot.
    • 1957 September 13, Walter Bernstein, “The Cherubs Are Rumbling”, in The New Yorker‎[1], archived from the original on 18 February 2024:
      One trouble, he explained, is that dope pushers flock to neighborhoods where two gangs are at war, knowing they will find buyers among members of the gangs who are so keyed up that they welcome any kind of relaxation or who are just plain afraid.
  2. (archaic) Plainly; distinctly.
    Tell me plain: do you love me or no?
Translations

Etymology 2

From Old French plain, from Latin plānum (“level ground, a plain”), neuter substantive from plānus (“level, even, flat”). Doublet of llano, piano, and plane.

Noun

English Wikipedia has an article on:
Wikipedia
a plain

plain (plural plains)

  2. An expanse of land with relatively low relief and few trees, especially a grassy expanse.
    • 1667, John Milton, “Book I”, in Paradise Lost. […], London: […] [Samuel Simmons], and are to be sold by Peter Parker […]; [a]nd by Robert Boulter […]; [a]nd Matthias Walker, […], →OCLC; republished as Paradise Lost in Ten Books: […], London: Basil Montagu Pickering […], 1873, →OCLC:
      Him the Ammonite / Worshipped in Rabba and her watery plain.
    • 1961, J. A. Philip. Mimesis in the Sophistês of Plato. In: Proceedings and Transactions of the American Philological Association 92. p. 467.
      For Plato the life of the philosopher is a life of struggle towards the goal of knowledge, towards “searching the heavens and measuring the plains, in all places seeking the nature of everything as a whole”
    Synonyms: flatland, grassland, prairie, steppe
    Hypernyms: land, terrain
    Hyponyms: prairie, steppe
  3. A broad, flat expanse in general, as of water.
    • 1850, [Alfred, Lord Tennyson], “Canto IX”, in In Memoriam, London: Edward Moxon, […], →OCLC:
      Fair ship, that from the Italian shore,
      ⁠Sailest the placid ocean-plains
      ⁠With my lost Arthur’s loved remains,
      Spread thy full wings, and waft him o’er.
  4. (archaic) Synonym of field in reference to a battlefield.
  5. (obsolete) Alternative spelling of plane: a flat geometric field.
Usage notes
  • As with grassland(s), flatland(s), etc., plains can function as the plural of plain (There are ten principal low plains on Mars) or as its synonym (She lives on the plains), with a vague sense of greater expansiveness.
Derived terms
Translations
The translations below need to be checked and inserted above into the appropriate translation tables. See instructions at Wiktionary:Entry layout § Translations.
Translations to be checked

Verb

plain (third-person singular simple present plains, present participle plaining, simple past and past participle plained)

  1. (obsolete, transitive) To level; to raze; to make plain or even on the surface.
  2. (obsolete, transitive) To make plain or manifest; to explain.

Etymology 3

From Anglo-Norman plainer, pleiner, variant of Anglo-Norman and Old French pleindre, plaindre, from Latin plangere.

Alternative forms

Noun

plain (plural plains)

  1. (rare, poetic) A lamentation.
    • 1815, Sir Walter Scott, The Lady of the Isles‎[3], Canto IV, part IX:
      The warrior-threat, the infant's plain,
      The mother's screams, were heard in vain;

Verb

plain (third-person singular simple present plains, present participle plaining, simple past and past participle plained)

  1. (reflexive, obsolete) To complain. [13th–19th c.]
  2. (ambitransitive, now rare, poetic) To lament, bewail. [from 14th c.]
    to plain a loss
    • 1595, Ed. Spencer [i.e., Edmund Spenser], “Astrophel. A Pastoral Elegie vpon the Death of the Most Noble and Valorous Knight, Sir Philip Sidney.”, in Colin Clouts Come Home Againe, London: […] T[homas] C[reede] for William Ponsonbie, →OCLC:
      Shepheards, that wont […]
      Oft times to plaine your loves concealed smart
    • 1597, [Joseph Hall], “(please specify the page)”, in Virgidemiarum, Sixe Bookes. First Three Bookes, of Tooth-lesse Satyrs. […], London: […] Thomas Creede, for Robert Dexter, →OCLC:
      Thy mother could thee for thy cradle set
      Her husband's rusty iron corselet;
      Whose jargling sound might rock her babe to rest,
      That never plain'd of his uneasy nest.
    • 1834, L[etitia] E[lizabeth] L[andon], chapter II, in Francesca Carrara. […], volume III, London: Richard Bentley, […], (successor to Henry Colburn), →OCLC, page 9:
      Then, again, she almost thought that the soft and wailing wind which swept mournfully through the sepulchral boughs of the large old yews, had a voice not of this world—was it the inarticulate plaining of her brother's gentle spirit, debarred from intercourse, but still keeping over her the deep and eternal watch of love?
    • 1936, Alfred Edward Housman, More Poems, "XXV", lines 5–9
      Then came I crying, and to-day, / With heavier cause to plain, / Depart I into death away, / Not to be born again.

Etymology 4

From Middle English pleyn, borrowed from Old French plein, from Latin plēnus (“full, filled, complete”). Ultimately from Proto-Italic *plēnos, from Proto-Indo-European *pl̥h₁nós (“full”). Doublet of plene, plenary, and full.

Adjective

plain (comparative plainer, superlative plainest)

  1. (obsolete) Full, complete in number or extent.

Anagrams

Dalmatian

Etymology

From Latin plēnus. Compare Italian pieno, Romansh plain, Romanian plin, French plein.

Adjective

plain (feminine plaina)

  1. full

French

Etymology

Inherited from Old French plain, from Latin plānus. Doublet of plan and piano.

Pronunciation

Adjective

plain (feminine plaine, masculine plural plains, feminine plural plaines)

  1. (obsolete) plane

Derived terms

Further reading

Anagrams

Middle French

Etymology

From Old French plain, from Latin plēnus.

Adjective

plain m (feminine singular plaine, masculine plural plains, feminine plural plaines)

  1. full (not empty)

Old French

Etymology 1

    From Latin plēnus.

    Adjective

    plain m (feminine plaine)

    1. full (not empty)
      Antonym: vuit
    Descendants

    Etymology 2

      From Latin plānum (“level ground, a plain”), neuter substantive from plānus (“level, even, flat”).

      Noun

      plain oblique singular, m (oblique plural plainz, nominative singular plainz, nominative plural plain)

      1. plain (flat area)
      Synonyms
      Descendants

      Etymology 3

        From Latin plānus (“level, even, flat”).

        Adjective

        plain m (oblique and nominative feminine singular plaine)

        1. flat (not even or mountainous)
        Descendants

        Romansh

        Alternative forms

        Etymology

        From Latin plēnus.

        Adjective

        plain m (feminine singular plaina, masculine plural plains, feminine plural plainas)

        1. (Rumantsch Grischun, Puter, Vallader) full
        source: https://en.wiktionary.org/wiki/plain