Definition of some determiner from the Oxford Advanced Learner's Dictionary

      

    some

     determiner
    determiner
    BrE BrE//səm//
     
    ; NAmE NAmE//səm//
     
    ; BrE strong form BrE//sʌm//
     
    ; NAmE strong form NAmE//sʌm//
     
     
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  1. 1  used with uncountable nouns or plural countable nouns to mean ‘an amount of’ or ‘a number of’, when the amount or number is not given There's still some wine in the bottle. Have some more vegetables. In negative sentences and questions any is usually used instead of ‘some’:I don't want any more vegetables.Is there any wine left? However, some is used in questions that expect a positive reply:Would you like some milk in your coffee?Didn't you borrow some books of mine?
  2. 2  
    BrE BrE//sʌm//
     
    ; NAmE NAmE//sʌm//
     
    used to refer to certain members of a group or certain types of a thing, but not all of them Some people find this more difficult than others. Some people never seem to put on weight while others are always on a diet. I like some modern music (= but not all of it).
  3. 3  
    BrE BrE//sʌm//
     
    ; NAmE NAmE//sʌm//
     
    a large number or amount of something It was with some surprise that I heard the news. We've known each other for some years now. We're going to be working together for some time (= a long time).
  4. 4  
    BrE BrE//sʌm//
     
    ; NAmE NAmE//sʌm//
     
    a small amount or number of something There is some hope that things will improve.
  5. 5  used with singular nouns to refer to a person, place, thing or time that is not known or not identified There must be some mistake. He's in some kind of trouble. She won a competition in some newspaper or other. I'll see you again some time, I'm sure.
  6. 6
    BrE BrE//sʌm//
     
    ; NAmE NAmE//sʌm//
     
    (informal, sometimes ironicsometimes ironic) used to express a positive or negative opinion about somebody/something That was some party! Some expert you are! You know even less than me.
  7. Word Origin Old English sum, of Germanic origin, from an Indo-European root shared by Greek hamōs ‘somehow’ and Sanskrit sama ‘any, every’.
See the Oxford Advanced American Dictionary entry: some