bestseller
n. countable B1 Intermediate US //ˈbɛˈsɛɫɝ// UK //bɛstsˈɛlɐ// best·seller
n. a book or other product that sells in very large numbers. You use this to describe something that many people are buying right now.
n. a product, particularly a book, that features on a list of top sales for a specific period.
Her new novel became an instant bestseller.
The biography reached the top of the bestseller list just two weeks after its official release.
While critical acclaim is often the goal for literary fiction, many authors prioritize the commercial success required to secure a spot on the national bestseller rankings.
From best + seller.
Usage
Often used as a modifier before another noun, such as 'bestseller list' or 'bestseller status'.