consolidate

Verb

• make or form into a solid or hardened mass
  • consolidate fibers into boards
    

• form into a solid mass or whole
  • The mud had consolidated overnight
    

• bring together into a single whole or system
  • The town and county schools are being consolidated
    

• make firm or secure; strengthen
  • consolidate one's gains
    
  • consolidate one's hold on first place
    

• unite into one
  • The companies consolidated