bestseller
US /ˌbestˈsel.ɚ/
UK /ˌbestˈsel.ɚ/

1.
best-seller
a book or other product that sells in very large numbers
:
•
Her latest novel quickly became a bestseller.
O último romance dela rapidamente se tornou um best-seller.
•
The new smartphone model is expected to be a huge bestseller.
Espera-se que o novo modelo de smartphone seja um grande best-seller.