The phrase "for good" can be replaced with several synonyms to convey the same meaning. Some of the synonyms include "permanently," "forever," "for keeps," "indefinitely" or "for all time." These words suggest a finality or a sense of completion. Another way to express "for good" is to use words such as "satisfactorily," "successfully," or "effectively," which imply that something has been done well or accomplished with a positive outcome. When used in a different context, "for good" could be swapped with "for the better," "for the greater good" or "for the sake of improvement".