spine - definition and synonyms

 
 
noun 

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/spaɪn/
singularspine
pluralspines
  1. 1
    [countable] medical the row of bones down or along the middle of a human’s or animal’s back
  2. 2
    [countable] the edge of a book where all the pages are fixed together
  3. 3
    [countable] a sharp point on a plant or animal
  4. 4
    [uncountable] informal the determination and strong personality that you need in order to do what is right or to deal with a dangerous or difficult situation

    He’ll never do it – he’s got no spine.

See also