widened; widening
                                        ˈwīd-niŋ  
                                    
    ˈwī-dᵊn-iŋ
    
            
        
                                
              
          
                                                      : to increase the width, scope, or extent of                                      
              
                             
widen a road
                                       widen an investigation
                         
                
                    
                                
              
          
                                                      : to become wide or wider                                      
              
                             
a widening gap
                         
                
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  Merriam-Webster unabridged




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