diversification
noun /daɪˌvɜːsɪfɪˈkeɪʃn/
  /daɪˌvɜːrsɪfɪˈkeɪʃn/
 [uncountable]- diversification (into something) (especially in business) the act of developing a wider range of products, interests, skills, etc. in order to be more successful or reduce risk- the company's diversification into healthcare products
 
- the process of changing so that there is greater variety- the evolutionary diversification of flowering plants