Learn how to say Contribution correctly in English with this tutorial pronunciation video.
Oxford dictionary definition of the word contribution:
the act of contributing
something contributed, such as money or ideas
an article, story, etc, contributed to a newspaper or other publication
(insurance) a portion of the total liability incumbent on each of two or more companies for a risk with respect to which all of them have issued policies
(archaic) a levy, esp towards the cost of a war