From Longman Business Dictionaryconflict of interestˌconflict of ˈinterest noun (plural conflicts of interest) [countable, uncountable]LAW a situation in which you cannot do your job fairly because you have the power to decide something in a way that would be to your advantage, although this may not be the best decisionThere is a growing conflict of interest between her position as a politician and her business activities.