改善[kaizen] betterment
勧善懲悪[kanzenchouaku] rewarding good and punishing evil
勧善懲悪劇[kanzenchouakugeki] morality play
偽善[gizen] hypocrisy
偽善者[gizensha] hypocrite

最善[saizen] the very best
慈善[jizen] charity
慈善家[jizenka] charitable person
慈善会[jizenkai] philanthropic society
慈善市[jizenichi] charity bazaar

祓い清める[haraikiyomeru] to purify
お祓い[oharai] exorcism rite
修祓[shubatsu] purification rite (esp. one held prior to a Shinto event)
大祓い[ooharae] great purification
禊祓[misogiharae] form of Shinto purification

祓う[harau] to exorcise
名越しの祓[nagoshinoharae] summer purification rites (held at shrines on the last day of the 6th lunar month)
善祓[yoshiharae] purification to invite good fortune
悪祓[ashiharae] purification to cleanse one of sin