Enter a clue or pattern or both:
The Clue
Book with a stiff cover (8 letter answer)
The Answer
HARDBACK
Tags
Notes
The answer HARDBACK is so rare that it appears less than once every 2500 puzzles.
Definition
HARDBACK as a noun:
1. (hardback, hardcover) = a book with cardboard or cloth or leather covers
HARDBACK as an adjective:
1. (hardbacked, hardback, hardbound, hardcover) = having a hard back or cover; "hardback books"