paperbackPronunciation: /ˈpeɪpəbak/Translate paperback | into French | into German | into Italian | into Spanish Definition of paperback noun a book bound in stiff paper or flexible card: [as modifier]:the paperback edition of her biographyPhrases in paperback in an edition bound in stiff paper or flexible card: now available in paperbackpaperback in other Oxford dictionaries Definition of paperback in the US English dictionary