Webwhen you make a contribution, it means you're giving something away — whether it's your money, your possessions, or your time. A contribution can take many forms. Webdefinition of contribution noun in oxford advanced learner's dictionary. Meaning, pronunciation, picture, example sentences, grammar, usage notes, synonyms and more. Weba contribution is a portion of the total liability of each of two or more companies for a risk for which all of them have issued policies. Under the contribution by equal shares method,. To give something, especially money, in order to provide…