diversify

Verb

• vary in order to spread risk or to expand
  • The company diversified
    

• spread into new habitats and produce variety or variegate
  • The plants on this island diversified
    

• make (more) diverse
  • diversify a course of study
    

Related words

• Synonyms: 
  branch out , broaden , radiate
• Antonyms: 
  specialize , specialise , narrow , narrow down