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jacket

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noun [countable] jacket pronunciation in American English /ˈdʒækət/ 
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singularjacket
pluraljackets
  1. 1
    a short coat that covers the upper part of the body and is made in many styles for different occasions and different kinds of weather

    a tweed/linen/denim jacket

    a sports jacket and slacks

    a suit jacket

    He was wearing jeans and a leather jacket.

pre-roll

a video advertisement that appears immediately before an online video

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