fiddle - definition and synonyms

noun [countable] informal 

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/ˈfɪd(ə)l/
singularfiddle
pluralfiddles
  1. 1
    a dishonest method of getting money or other benefits

    a tax/insurance fiddle

    be on the fiddle:

    He thought all self-employed people were on the fiddle.

  2. 2

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    a violin
  3. 3
    [usually singular] an act of touching, moving, or changing something many times in order to improve it or make it work better