改修[kaishuu] repair
監修[kanshuu] (editorial) supervision
経営学修士[keieigakushuushi] Master of Business Administration
兼修[kenshuu] studying two lines together (as a major and a minor)
研修[kenshuu] training (esp. in-service)

研修員[kenshuuin] trainee
研修課[kenshuuka] training section
研修生[kenshuusei] trainee
事前研修[jizenkenshuu] advance training
修まる[osamaru] to govern oneself

哀史[aishi] sad story or history
医学史[igakushi] history of medicine
音楽史[ongakushi] music history
偽史[gishi] falsified history
教会史[kyoukaishi] church history

近代史[kindaishi] modern history
古史[koshi] ancient history
古代史[kodaishi] ancient history
国史[kokushi] history of a nation
史家[shika] historian