bonus

noun, plural bo·nus·es.

1. something given or paid over and above what is due.
2. a sum of money granted or given to an employee, a returned soldier, etc., in addition to regular pay, usually in appreciation for work done, length of service, accumulated favors, etc.
3. something free, as an extra dividend, given by a corporation to a purchaser of its securities.
4. a premium paid for a loan, contract, etc.
5. something extra or additional given freely: Every purchaser of a pound of coffee received a box of cookies as a bonus.

noun

1. something given, paid, or received above what is due or expecteda Christmas bonus for all employees
2. mainly British an extra dividend allotted to shareholders out of profits
3. insurance, British a dividend, esp a percentage of net profits, distributed to policyholders either annually or when the policy matures
4. British a slang word for a bribe