contribution

noun

1. 1

   the part played by a person in bringing about a result

   I am proud of my contribution in advancing the project

   they all did their share of the work

2. 2

   act of giving in common with others for a common purpose especially to a charity

3. 3

   a writing for publication especially one of a collection of writings as an article or story

4. 4

   an amount of money contributed

   he expected his contribution to be repaid with interest

5. 5

   a voluntary gift (as of money or service or ideas) made to some worthwhile cause