noun
adj
Freq #108815
Meanings
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1
noun
a book bound with a rigid protective cover
The library ordered the reference work as a durable hardback.
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2
adj
bound with a rigid cover rather than a flexible paper one
The hardback edition includes full-page illustrations.
Thesaurus
Etymology
Formed from hard + back, referring to the rigid board at the back of the binding. The noun and adjective developed in contrast with paperback and were modeled on that earlier publishing term.