bueno
good
bonus
something good or extra
Bueno means good and sounds similar to the English word bonus0, which is something good or extra0.
adjective
  1. good
    Good, pleasant, or satisfactory
    El libro es muy bueno. // The book is very good.
interjection
  1. well
    Well (used as an interjection)
    Bueno, ¿qué vamos a hacer ahora? // Well, what are we going to do now?