In of a book terms the difference between hardcover and hardbound
is that hardcover is having a rigid binding while hardbound is having a hardcover; hardback.
As a noun hardcover
is a book with a rigid binding, often of cardboard or leather.
hardcover
English
Noun
(
en noun)
A book with a rigid binding, often of cardboard or leather.
Adjective
(-)
(of a book) Having a rigid binding.
Synonyms
* hardback
See also
* paperback
hardbound
English
Adjective
(-)
(of a book) Having a hardcover; hardback