a person who is not known or mentioned by name: There’s someone at the door. Someone’s left their bag behind. It’s time for someone new (= a new person) to take over. It couldn’t have been me—it must have been someone else (= a different person). Should we call a doctor or someone? The difference between someone and anyone is the same as the difference between some and any.
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?
Student or Learner