[1] : The Collaborative International Dictionary of English v.0.48

paperback \pa"perback`\ p=a"p~erba^k`, n.
   a book with paper covers; -- contrasted with hardback or
   hardcover.

   syn: softback, soft-cover.
        wordnet 1.5
see also:
hardback hardcover 

[2] : The Collaborative International Dictionary of English v.0.48

paperback \pa"perback\ adj.
   having a flexible binding; -- of books. contrasted to
   hardcover or hardbacked or hardbound.

   syn: paperbacked, soft-bound, softcover, softback.
        wordnet 1.5
see also:
hardcover hardbacked hardbound 

[3] : WordNet (r) 2.0

paperback
     adj : of books having a flexible binding syn: paperbacked
     n : a book with paper covers syn: paperback book, paper-back
         book, softback book, softback, soft-cover book, soft-cover
see also:
paperbacked paperback book paper-back book softback book softback soft-cover book 
soft-cover 

[4] : Moby Thesaurus II by Grady Ward, 1.0

39 moby thesaurus words for "paperback":
   best seller, book, bound book, classic, coloring book,
   definitive work, folio, great work, hardback, juvenile,
   juvenile book, limp-cover book, magnum opus, nonbook, notebook,
   novel, opus, opuscule, opusculum, picture book, playbook,
   pocket book, prayer book, production, psalmbook, psalter,
   publication, serial, sketchbook, soft-cover, songbook,
   standard work, storybook, title, tome, trade book, volume, work,
   writing

Paperback >> P Words
Paperback, definition of term: Paperback
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