bonus · noun C /ˈboʊ.nəs/
bonus (EXTRA THING)
B2 another pleasant thing in addition to something you were expecting
Dictionary example:
I love the job, and it's an added bonus that it's so close to home.
Learner example:
[A]s a bonus we'll have staff discounts on books an[d] CDs. (First Certificate in English; B2; Spanish)
bonus (EXTRA MONEY)
B2 an extra amount of money that you are given, especially because you have worked hard
Dictionary example:
a Christmas bonus
Learner example:
My employer said if I pass my exam, he will give me a bonus of fifty pounds. (Preliminary English Test; B1; French)