[n] any one of a number of individual efforts in a common endeavor; "I am proud of my contribution to the team's success"; "they all did their share of the work"
[n] act of giving in common with others for a common purpose especially to a charity
[n] a writing for publication especially one of a collection of writings as an article or story
[n] an amount of money contributed; "he expected his contribution to be repaid with interest"
[n] a voluntary gift (as of money or service or ideas) made to some worthwhile cause