bonus
n. countablen. an extra amount of money you get at work, usually for doing a good job. It can also mean any pleasant thing that you get in addition to what you expected.
n. a sum of money added to a person's wages as a reward for good performance; by extension, any unexpected or extra benefit. Often used in corporate contexts to describe performance-linked compensation.
The company gives every employee a small Christmas bonus.
The sales team received a significant bonus after exceeding their annual targets by twenty percent.
While the salary itself was competitive, the generous annual bonus and the comprehensive health insurance package made the offer impossible to refuse.
Borrowed from Latin bonus (“good”). Doublet of bona.
Commonly takes the preposition 'for' when describing the reason ('a bonus for hard work').