contributor

Everyday

1. A person who gives money, help or ideas to something together with others: contributors to the charity. tree →
2. A person who writes articles or parts for a book, magazine, website or project. tree →
3. Something that helps cause something: smoking is a major contributor to heart disease. tree →

In the lessons

In school projects, all group members are contributors; in charity events, contributors give money. In maths problems contributors share costs. In science, cars are a contributor to air pollution. Phrases: a major contributor to, a regular contributor, list of contributors.

Examples

• Every contributor to the class book wrote one page. tree →
• The charity thanked all its contributors. tree →
• Twenty contributors gave 5 dollars each, so 100 dollars was raised. tree →
• Cars are a big contributor to air pollution. tree →
• She is a regular contributor to the school newspaper. tree →
• (formal) Each contributor shall receive a certificate. tree →

Note

Countable. Verb: contribute; noun: contribution. Stress: con-TRIB-ut-or. In maths, the total = number of contributors x amount each (if all give the same).