CHANGE definition: 1. to exchange one thing for another thing, especially of a similar type: 2. to make or become…. Learn more., The noun change can refer to any thing or state that is different from what it once was. Change is everywhere in life — and in English. The word has numerous senses, both as a noun and verb, and is a part of many common phrases, like "a change of heart.", To change is to make a material or radical difference or to substitute one thing for another of the same kind: to change a lock; to change one's plans. To alter is to make some partial change, as in appearance, but usu. to preserve the identity: to alter a garment; to alter a contract ., What does change mean? This dictionary definitions page includes all the possible meanings, example usage and translations of the word change. the process of becoming different. The product is undergoing a change in order to improve it. money given back when a customer hands over more than the exact price of an item., 1. Change (noun): The act or instance of making or becoming different. 2. Change (verb): To make or become different; to alter or modify. 3. Change (noun): Coins as opposed to paper money. 4. Change (verb): To switch from one state or form to another, as in changing clothes., Change definition: To give and receive reciprocally; interchange..