noun
                                                improvement (or an intended improvement) in the existing form or condition of institutions or practices etc.
                                                
                                                                                                Examples
                                                
                                                                                                        - intended to make a striking change for the better in social or political or religious affairs
 
                                                                                        
                                                noun
                                                a religious movement of the 16th century that began as an attempt to reform the Roman Catholic Church and resulted in the creation of Protestant churches
                                                                                                Synonyms
                                                
                                                                                                                                                                        Protestant Reformation
                                                                                                                                                            
                                                
                                                                                             
                                                                                        
                                                noun
                                                rescuing from error and returning to a rightful course
                                                                                                Synonyms
                                                
                                                
                                                                                                Examples
                                                
                                                                                                        - the reclamation of delinquent children