The change of something that is defective, broken, inefficient or otherwise negative, in order to correct or improve it
To put into a new and improved form or condition; to restore to a former good state, or bring from bad to good; to change from worse to better
To form again or in a new configuration.
to reform a profligate man; to reform corrupt manners or morals; to reform a criminal
To return to a good state; to amend or correct one's own character or habits