hardbackPronunciation: /ˈhɑːdbak/Translate hardback | into French | into German | into Italian | into Spanish Definition of hardback noun a book bound in stiff covers: [as modifier]:a hardback editionPhrases in hardback in an edition bound in stiff covers:the novel was first published in hardback in 1981hardback in other Oxford dictionaries Definition of hardback in the US English dictionary