From Longman Business Dictionaryopportunity costopporˈtunity ˌcostECONOMICS[uncountable] the real cost of doing something, including the cost of things that you cannot do because of the choice you have madeThe opportunity cost of sending a child to a fee-paying school is all the things that you can no longer afford to buy, such as a new car or a holiday abroad. → cost
