Noun – Bonus
1 : something good that is more than what was expected or required
As a bonus for good behavior you can stay up late.
The product has the added bonus of providing extra vitamins.
2 : an extra amount of money that is given to an employee
Staff members were given a bonus for finishing the project on schedule.
The company offered bonuses to entice new workers.
We receive annual bonuses at the end of the year.