1. something given or done to help achieve a result or to help others
2. the act of giving or doing something to help achieve a result
3. a sum of money given to a charity, cause, or fund

Examples

• Her contribution to the science fair project was excellent research.
• The company made a large contribution to the local hospital.
• Everyone's contribution helped make the event successful.
• He made monthly contributions to his retirement fund.
• The artist's contribution to modern painting cannot be ignored.
• We appreciate your contribution of time and effort.
• The charity relies on contributions from generous donors.