- 1contributor (to something) a person who writes articles for a magazine or a book, or who talks on a radio or television program or at a meeting a regular contributor to this magazine
- 2 contributor (to something) a person or thing that provides money to help pay for something, or support something Older people are important contributors to the economy. the largest contributor to his campaign fund
- 3contributor (to something) something that helps to cause something sulfur dioxide is a pollutant and a major contributor to acid rain.
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