Definition of stack noun from the Oxford Advanced Learner's Dictionary

     

    stack

     noun
    noun
    BrE BrE//stæk//
     
    ; NAmE NAmE//stæk//
     
    Computer programming
     
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  1. 1[countable] a pile of something, usually neatly arranged a stack of books a stack hi-fi system (= where a radio, CD player, etc. are arranged on top of each other) see also haystack
  2. 2[countable] stack (of something) (informal, especially British English) a large number or amount of something; a lot of something stacks of money There's a stack of unopened mail waiting for you at the house. I've got stacks of work to do.
  3. 3[countable] a tall chimney, especially on a factory see also chimney stack, smokestack
  4. 4the stacks [plural] the part of a library, sometimes not open to the public, where books that are not often needed are stored The books you need will have to be brought up from the stacks.
  5. 5 [countable] (computing) a way of storing information in a computer in which the most recently stored item is the first to be retrieved (= found or got back) See related entries: Computer programming
  6. 6[countable] (geology) a tall thin part of a cliff that has been separated from the land and stands on its own in the sea
  7. Word Origin Middle English: from Old Norse stakkr ‘haystack’, of Germanic origin.Extra examples She added her tray to the stack. She brought us a stack of pancakes covered with syrup. There was a towering stack of containers ready to be loaded onto the ship.Idioms
    blow your top(North American English also blow your stack)
     
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    (informal) to get very angry
See the Oxford Advanced American Dictionary entry: stack