reform
n. C / U C1 Advanced Oxford US //ɹəˈfɔɹm// re·form
n. a change made to a system, law, or organization to improve it. You usually hear this word when people talk about fixing big problems in government or society.
n. the improvement or amendment of what is wrong, corrupt, or unsatisfactory in a system or institution.
The government promised a major reform of the tax system.
After the scandal, the committee introduced sweeping reforms to ensure that public funds would be managed more transparently.
While the proposed healthcare reform aimed to expand coverage to uninsured citizens, critics argued it would place an unsustainable financial burden on small businesses.
Usage
Often modified by adjectives like 'sweeping', 'major', or 'structural'; frequently takes the preposition 'of' or 'in'.