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



    BrE BrE//luːp//
    ; NAmE NAmE//luːp//
    Railway tracks and stations
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  1. 1a shape like a curve or circle made by a line curving right round and crossing itself The road went in a huge loop around the lake. Duclair is a small town on a loop of the River Seine.
  2. 2a piece of rope, wire, etc. in the shape of a curve or circle He tied a loop of rope around his arm. Make a loop in the string. a belt loop (= on trousers/pants, etc. for holding a belt in place)
  3. 3a strip of film or tape on which the pictures and sound are repeated continuously The film is on a loop. (figurative) His mind kept turning in an endless loop.
  4. 4(computing) a set of instructions that is repeated again and again until a particular condition is satisfied
  5. 5a complete circuit for electrical current
  6. 6(British English) a railway line or road that leaves the main track or road and then joins it again See related entries: Railway tracks and stations
  7. 7the Loop (US English, informal) the business centre of the US city of Chicago
  8. Word Originlate Middle English: of unknown origin; compare with Scottish Gaelic lùb ‘loop, bend’.Extra examples Put the other end of the string through the loop. The audio tape runs in a continuous loop lasting thirty minutes. positive and negative feedback loops He attached the keys to a belt loop on his jeans.Idioms
    in the loop, out of the loop
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    (informal) part of a group of people that is dealing with something important; not part of this group A lot of people want to be in the loop on this operation. Lawton had gradually been cut out of the loop on legal reviews.
    knock/throw somebody for a loop
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    (North American English, informal) to shock or surprise somebody The result of the election knocked most people for a loop.
See the Oxford Advanced American Dictionary entry: loop

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