అర్థం : Improvement (or an intended improvement) in the existing form or condition of institutions or practices etc.. Intended to make a striking change for the better in social or political or religious affairs.

అర్థం : 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.

అర్థం : Rescuing from error and returning to a rightful course.