such
I
 /ˈsʌʧ/  adj  
  1 always used before a noun
  — used to say that something is great in degree, quality, or number
   I've been such a fool! [=I've been very foolish]
   How could you believe such nonsense?
   I've never seen such a (large) crowd here before.
   Where are you off to in such a rush?
   The building had deteriorated to such a degree [=so much] that they had to tear it down.
   I was surprised that the town had changed to such an extent. [=so much]
  2 not used before a noun
  — used to say that something has a quality that results in something specified
   The evidence is such as to leave no doubt of his guilt. = The evidence is such that there can be no doubt of his guilt.
   Her excitement was such that she could hardly contain herself. [=she was so excited that she could hardly contain herself]
  3 always used before a noun : of the kind specified
   The gun had his fingerprints on it. Such evidence [=evidence of that kind] leaves little doubt of his guilt.
   She has published her first sci-fi novel and hopes to write more such novels.
   No such agreement was made.
   I know it was an accident, but such people [=people like that] should not be allowed to drive.
   “Can I talk to Mary?” “I'm sorry. There is no such person here.” [=there is no one named Mary here]
   In such a situation (as this), it is important to remain calm.
   The magazine publishes articles about such varied subjects as astronomy, politics, and gardening.
   It will be documented in such a way/manner as to prevent misunderstanding. = It will be documented in such a way/manner that there can be no misunderstanding. [=it will be documented in a way that prevents misunderstanding]
   I've never heard of such a thing!
   “You will apologize at once!” “I'll do no such thing!” [=I will not apologize]
   There is no such thing as having too many friends. [=you cannot have too many friends]
   She said she was too busy or some such nonsense. [=or something similar]
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II
  pronoun  
   somewhat formal  
  1 : that kind or type of person or thing
   She has a plan, if it may be called such. [=if it deserves to be called a plan; if it is good/practical enough to be referred to as a plan]
   He was not only a politician but also an inventor and well-known as such. [=well-known as an inventor]
   It is a serious problem and should be treated as such.
  — see also AS SUCH ((BELOW))
  2 : something previously stated or specified
   If such is the decision, nothing further should be done.
   We were outnumbered and surrounded. Such being the case [=since that was the case], we had to surrender.
   If you retained a receipt, please enclose a copy of such. [=please enclose a copy of the receipt]
  and such
   : and things of that kind
    Pens, pencils, markers, and such are in this drawer.
  as such
   1 : of the usual or expected kind : in the usual sense
    I have no boss as such [=there is no one who is actually my boss], but I do have to answer to my clients.
   2 : by, of, or in itself
    — used to indicate that something is being considered by itself and not along with other things
    There's nothing wrong with gambling as such [=per se], but it's best to do it in moderation.
    see also such 1 (above), 2
  such is life
   : life is like that and cannot be changed
    We've had our share of problems, but such is life.
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III
  adv  
  1 somewhat informal
  — used to make a description more forceful
   The team has such tall players. [=the team's players are very tall]
   She wears such stylish clothes. [=her clothes are very stylish]
   She hasn't been in such good spirits lately.
   We had such a good time [=a very good time] at the party!
   It is such a long trip.
   It was such an awkward moment.
   Today was such a nice/beautiful day!
   I don't think that's such a good/great idea. [=I don't think that's a good idea]
  2 : to the degree that is specified or understood
   Such violent movies (as these) are not suitable for children.
   We've never had such a cold winter (as this).
   I have never seen such a large cat!
   I had such a bad headache that I couldn't think straight.
  ever such — see ever
  such as
   1
    — used to introduce an example or series of examples
    You will need some form of identification, such as [=like] a driver's license.
    “I have my reasons for not wanting to go.” “Such as?” [=give me an example]
   
   2 : of the specified kind
    In cases such as [=like] this (one), it's best to be cautious.
    Questions such as the one you've asked are difficult to answer.
  such as it is
    — used to say that something is not very good in quality or condition
    The meal, such as it was, was served quickly. [=the meal, which was not very good, was served quickly]
    Welcome to my humble home–such as it is.