contributor[noun]Synonyms: giver, donor, patron, subscriber, supporter 
 [TahlilGaran] English Synonym Dictionary ▲
 con‧trib‧u‧tor AC /kənˈtrɪbjətə, kənˈtrɪbjʊtə $ -ər/ 
 noun [countable] [
Word Family: noun: 
contribution, 
contributor; 
verb: 
contribute; 
adjective: 
contributory]
1.  someone who gives money, help, ideas etc to something that a lot of other people are also involved in: 
 campaign contributorscontributor to
 campaign contributorscontributor to Dr Win was a major contributor to the research.2.
 Dr Win was a major contributor to the research.2.  someone who writes a story, song, speech etc that forms part of a larger work such as a newspaper, book, broadcast, recording etc
contributor to a regular contributor to ‘Time’ magazine3.  formal
 a regular contributor to ‘Time’ magazine3.  formal someone or something that helps to cause something to happen
contributor to Cars are still one of the principal contributors to air pollution.
 Cars are still one of the principal contributors to air pollution.  [TahlilGaran] Dictionary of Contemporary English ▲