1. (

• broaden ,

) make broader; "broaden the road" ;

2. (

• widen ,
• broaden ,
• extend ,

) 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" ;

3. (

• diversify ,
• branch_out ,
• broaden ,

) vary in order to spread risk or to expand; "The company diversified" ;

4. (

• broaden

) become broader; "The road broadened" ;