widen

Verb

• extend in scope or range or area
  • The law was extended to all citizens
    
  • widen the range of applications
    
  • broaden your horizon
    
  • Extend your backyard
    

• make wider
  • widen the road
    

• make (clothes) larger
  • Let out that dress--I gained a lot of weight
    

• become broader or wider or more extensive
  • The road widened
    

Related words

• Synonyms: 
  broaden , extend , let out
• Antonyms: 
  take in , narrow , contract