noun
contributor
kun-TRIB-yuh-ter/kənˈtrɪbjətər/
A person or thing that gives something or helps produce a result.
The contributor adds groceries to the food collection.

Etymology
The agent ending identifies one who allots or pays together with others. Originally a payer of a tax or assessment, a contributor became more broadly one who gives or helps.
In context
you are helping us make this decision on this change like that's um you're becoming a contributor by talking in this discussion
More examples
- Several contributors donated money to the project.
- Poor drainage was a major contributor to the flooding.
- The editor thanked every contributor whose work appeared in the volume.
Forms
contributor · contributors
contribute verb — give something toward a shared result
Similar words
- donor
- A donor gives something; a contributor can also supply work, ideas, or a causal influence.
- collaborator
- A collaborator works jointly with others; a contributor may provide just one piece or resource.