Contributor
/kəˈntrɪbjətər/
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Definition
(noun) A benefactor; someone who donates to charity or some cause.
Sentence Examples
Urban sprawl is said to be a major contributor to global warming.
In order to tag sentences, you must, at least, be an "advanced" contributor.
CEFR Practice Quiz
Urban sprawl is said to be a major ____ to global warming.