›[I]to be one of the reasons why something happens: contribute to/toward/towards sthAnalysts agree that subprime loans contributed to the recession.
›[I or T]to add new plans or ideas, or help make improvements to something so that it becomes more valuable or successful: Employees are encouraged to contribute at staff meetings.There are a number of people who have contributed ideas.contribute to/toward/towards sthIt's best when leaders are clear about how they can best contribute to the overall strategy.
›[I or T]to provide money or support to help another person, company, or organization to achieve its goal: contribute to/toward/towards sthAt present, only 10% of employers contribute towards childcare costs.contribute sth to/toward/towards sthOver £75 million was contributed to the campaign.