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tail - definition and synonyms

 
 
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noun     tail pronunciation in British English
/teɪl/
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singulartail
pluraltails
  1. 1
    [countable] a part at the back of an animal’s body that can move

    The animal sprays liquid from a gland under its tail.

    the bright tail feathers of a peacock

  2. 2
    [countable] the back part of something that is long or that consists of many parts

    the tail of a comet

    He was at the tail of the queue.

    1. a.
      the back part of a plane
  3. 3
    [countable] informal someone who is sent to secretly follow someone else, especially a criminal
  4. 4

    tails

    [uncountable] the side of a coin that does not have a picture of a person on it
  5. 5
    [countable] the bottom part of your shirt that you put inside your trousers
  6. 6

    tails

    [plural] a man’s formal jacket that is short at the front and has two long pointed parts that hang down at the back

    He wore a top hat and tails.

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