DIVERSITY meaning : 1 : the quality or state of having many different forms, types, ideas, etc. usually singular; 2 : the state of having people who are different races or who have different cultures in a group or organization usually singular Diversity is the state or fact of being diverse; difference; unlikeness. It can also refer to the spectrum of individual differences and group memberships in society, or the inclusion of people from different backgrounds. DIVERSITY definition : 1. the fact of many different types of things or people being included in something; a range of…. Learn more. Learn the meaning of diversity as a noun in British and American English, with synonyms, examples, and pronunciation. Diversity can refer to the state or quality of being different or varied, a variety or assortment, a point of difference, or the inclusion of people of different races, genders, religions, etc.