english
                    
                    
                    
                        1
                           general:: 
                           Phrase(s): build out onto something  to extend a building onto a particular space.  •  We can build out onto the adjacent lot after we purchase it.  •  We built out onto the area over the old patio.
                           
                           
                           
                           
                        
    
                       
                    
                        
                        
                        
                    
 
                    
                        McGrawhill's American Idioms And Phrasal Verbs