ゼン

よ.い、い.い、よ.く、よし.とする

善, 羊, 䒑, 八, 口

virtuous, good, goodness

改善(かいぜん): (1) betterment; improvement (2) kaizen (Japanese business philosophy of continuous improvement)
善(ぜん): good; goodness; right; virtue
親善(しんぜん): friendship
最善(さいぜん): the very best
善し悪し(よしあし): right or wrong; good or bad; merits or demerits; quality; suitability
善良(ぜんりょう): goodness; excellence; virtue