catflap.org Online Dictionary Query

  book spine /bˈʊk spˈaɪn/
  Buchrücken , Rücken  [print]
     Synonyms: spine of a book, spine, back of a book, shelf-back, back, backbone
  
   see: book spines, spines, backs, backbones, cracked spine, tight back, flat back, square back, hollow back, loose back, open back, false back, spring back, hand-bound book with French joints