Definition of chunk noun from the Oxford Advanced American Dictionary

     

    chunk

     noun
    noun
    NAmE//tʃʌŋk//
     
     
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  1. 1 a thick, solid piece that has been cut or broken off something a chunk of cheese/concrete
  2. 2 (informal) a fairly large amount of something I've already written a fair chunk of the article. I bet that cost a chunk of change (= a lot of money)!
  3. 3 (linguistics) a phrase or group of words that can be learned as a unit by someone who is learning a language. Examples of chunks are “Can I have the bill, please?” and “Pleased to meet you.”
  4. Idioms
    blow chunks(slang)
     
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    to vomit
See the Oxford Advanced Learner's Dictionary entry: chunk