spur - definition and synonyms

 
noun [countable] 

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/spɜː(r)/
singularspur
pluralspurs
  1. 1
    a metal object on the heel of a rider’s boot that the rider presses into a horse’s side to make it go faster
    1. a.
      a sharp curved part on the back of a bird’s leg
       Synonyms and related words
  2. 2
    something that encourages someone to do something

    The news was a spur to the government to cut income tax.

  3. 3
    a part of something such as a railway or an electrical circuit that goes in a different direction from the main part
  4. 4
    a long thin piece of land