From Longman Dictionary of Contemporary Englishcross-sellingˌcross-ˈselling noun [uncountable] when one company helps to sell another company’s products by, for example, advertising the second company’s products at the same time as its ownFrom Longman Business Dictionarycross-sellingˈcross-ˌselling noun [uncountable]MARKETING when one company helps another company to sell its products by selling or advertising them with its own productsFinancial institutions are becoming increasingly interested in cross-selling credit card, checking, and other types of account to customers.
