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Definition of plain adjective from the Oxford Advanced Learner's Dictionary

plain

adjective
 
/pleɪn/
 
/pleɪn/
(comparative plainer, superlative plainest)
Idioms
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  1. not decorated or complicated; simple
    • a plain but elegant dress
    • plain food
    • The interior of the church was plain and simple.
    • plain yogurt (= without sugar or fruit)
    compare fancy
    Homophones plain | planeplain   plane
     
    /pleɪn/
     
    /pleɪn/
    • plain adjective
      • She likes plain food, without sauces or cheese.
    • plain noun
      • Wheat is still grown on the Lombardy plain.
    • plain adverb (informal)
      • That's just plain silly!
    • plane noun
      • They recently flew into London on a private plane.
    • plane verb
      • You may need to plane the surface for a smoother fit.
    Extra Examples
    • The dress was absolutely plain, but quite stunning.
    • The food was fairly plain, but well cooked.
    • I prefer plain, simple things.
    • He eats his popcorn plain.
    Topics Houses and homesb2
    Oxford Collocations Dictionaryverbs
    • be
    • look
    • seem
    adverb
    • extremely
    • fairly
    • very
    phrases
    • plain blue, white, etc.
    See full entry
  2. without marks or a pattern on it
    • covers in plain or printed cotton
    • Write on plain paper (= without lines).
    Extra Examples
    • Patterned carpet shows the dirt less than a plain colour.
    • a range of plain and printed linens
    • Do you want plain or lined paper?
    • a plain white shirt
    Topics Clothes and Fashionb2
    Oxford Collocations Dictionaryverbs
    • be
    • look
    • seem
    adverb
    • extremely
    • fairly
    • very
    phrases
    • plain blue, white, etc.
    See full entry
  3. easy to see or understand synonym clear
    • He made it plain that we should leave.
    • She made her annoyance plain.
    • The facts were plain to see.
    • It was a rip-off, plain and simple.
    • plain to somebody It is all very plain to me.
    • it is plain (to somebody) that… It was plain that she wanted to leave.
    • it is plain (to somebody) how, what, etc…. It was plain to everyone just how dangerous the site could be.
    • plain from something (that…) What is quite plain from the evidence before me is (that) the figures are false.
    Synonyms clearclearobvious apparent evident plainThese words all describe something that is easy to see or understand.clear easy to see or understand and leaving no doubts:
    • It was quite clear to me that she was lying.
    obvious easy to see or understand:
    • It’s obvious from what he said that something is wrong.
    apparent [not usually before noun] (rather formal) easy to see or understand:
    • It was apparent from her face that she was really upset.
    evident (rather formal) easy to see or understand:
    • The orchestra played with evident enjoyment.
    plain easy to see or understand:
    • He made it very plain that he wanted us to leave.
    which word?
    • These words all have almost exactly the same meaning. There are slight differences in register and patterns of use. If you make something clear/​plain, you do so deliberately because you want people to understand something; if you make something obvious, you usually do it without meaning to:
      • I hope I make myself obvious.
      • Try not to make it so clear/​plain.
      In the expressions clear majority, for obvious reasons, for no apparent reason and plain to see, none of the other words can be used instead. You can have a clear/​an obvious/​a plain case of something but not:
      • an evident case of something.
    Patterns
    • clear/​obvious/​apparent/​evident/​plain to somebody/​something
    • clear/​obvious/​apparent/​evident/​plain that/​what/​who/​how/​where/​why…
    • to seem/​become/​make something clear/​obvious/​apparent/​evident/​plain
    • perfectly/​quite/​very clear/​obvious/​apparent/​evident/​plain
    Extra Examples
    • They made it plain that they were against the idea.
    • Within weeks, it became perfectly plain that we were in the grip of a tyrant.
    • He made it very plain that he wanted us to leave.
    • Her intentions were plain enough.
    • It was plain to us that they had left fairly recently.
    Oxford Collocations Dictionaryverbs
    • be
    • seem
    • become
    adverb
    • fairly
    • very
    • etc.
    preposition
    • to
    See full entry
  4. not trying to trick anyone; honest and direct
    • The plain fact is that nobody really knows.
    • a politician with a reputation for plain speaking
    • (especially North American English) a plain, straightforward sort of man
    Synonyms plainplainsimple stark bare unequivocal These words all describe statements, often about something unpleasant, that are very clear, not trying to hide anything, and not using more words than necessary.plain used for talking about a fact that other people may not like to hear; honest and direct in a way that other people may not like:
    • The plain fact is that nobody really knows.
    simple [only before noun] used for talking about a fact that other people may not like to hear; very obvious and not complicated by anything else:
    • The simple truth is that we just can’t afford it.
    plain or simple?When it is being used to emphasize facts that other people may not like to hear, plain is usually used in the expression the plain fact/​truth is that… Simple can be used in this way too, but it can also be used in a wider variety of structures and collocations (such as reason and matter): The problem was due to the simple fact that…The problem was due to the plain fact that…for the plain reason that…It’s a plain matter of… Expressions with simple often suggest impatience with other people’s behaviour.stark (rather formal) used for describing an unpleasant fact or difference that is very obvious:
    • The stark truth is that there is not enough money left.
    The simple/​plain truth may be something that some people do not want to hear, but it may be good for them to hear it anyway. The stark truth is something particularly unpleasant and has no good side to it at all.
    bare [only before noun] the most basic or simple, with nothing extra:
    • She gave me only the bare facts of the case.
    unequivocal (formal) expressing your opinion or intention very clearly and firmly:
    • The reply was an unequivocal ‘no’.
    Patterns
    • the plain/​simple/​stark/​bare/​unequivocal truth
    • a(n) plain/​simple/​stark/​bare/​unequivocal fact/​statement
    • a(n) plain/​simple/​unequivocal answer
    Extra Examples
    • He prided himself on being a plain, honest man with no nonsense about him.
    • Let's be plain about this: we will need to make some difficult choices.
    Topics Personal qualitiesc1
  5. [only before noun] used to emphasize that something is very ordinary, not special in any way synonym everyday
    • You don't need any special skills for this job, just plain common sense.
    • The situation thrives on half-truths and plain ignorance.
  6. (especially of a woman) not beautiful or attractive
    • I've always had quite a plain face.
    • a rather plain woman
    • As a child she was rather plain.
    Topics Appearanceb2
  7. describing a simple stitch used in knitting
  8. Word OriginMiddle English: from Old French plain, from Latin planus, from a base meaning ‘flat’.
Idioms
be plain sailing
(North American English be clear/smooth sailing)
  1. to be simple and free from trouble
in plain English
  1. simply and clearly expressed, without using technical language
    • a document written in plain English
    • If you could put it in plain English I might be able to understand.
    • Teachers should encourage students to write in plain English.
(as) plain as a pikestaff | (as) plain as day | (as) plain as the nose on your face
  1. very obvious
See plain in the Oxford Advanced American DictionarySee plain in the Oxford Learner's Dictionary of Academic English
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noun
 
 
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