contribution

noun

1.
the effort contributed by a person in bringing about a result
Derived from:
contribute
2.
a voluntary gift (as of money or service or ideas) made to some worthwhile cause
3.
act of giving in common with others for a common purpose especially to a charity
Derived from:
contribute
4.
an amount of money contributed
5.
a writing for publication especially one of a collection of writings as an article or story