anteroom
noun
                                                                                                                            
                                                            an·te·room
                    
                                                                                                              
                                                                                                                                  ˈan-ti-ˌrüm 
                                                                                                                              
            -ˌru̇m
                                                      
                                                          
                                
              
          
                                                      : a small outer room that leads to another room and that is often used as a waiting room                                      
                
                    
Love words? Need even more definitions?
  
  Merriam-Webster unabridged




Share