Dune BrE AmE
a popular ↑ science fiction novel by the US writer Frank Herbert. It is the first in a series of books about a ↑ planet called Dune and the lives of the people who fight for control of the planet's most valuable ↑ natural resource (=something useful such as oil or coal that exists in a place and can be used to increase its wealth) , ↑ spice . Several million copies of the book have been sold and it has also been made into a film.