悪習[akushuu] bad habit
悪習慣[akushuukan] bad habit
演習[enshuu] practice
演習問題[enshuumondai] practice problem
演奏練習[ensourenshuu] musical rehearsal

学習[gakushuu] study
学習者[gakushuusha] learner
学習塾[gakushuujuku] private night-school
学習用[gakushuuyou] tutorial
学習用ヘルプ[gakushuuyouherupu] tutorial help

貨物自動車[kamotsujidousha] truck
各自[kakuji] individual
観自在[kanjizai] Avalokitesvara (bodhisattva)
結社の自由[kesshanojiyuu] freedom of association
現金自動支払機[genkinjidoushiharaiki] cash dispenser

現金自動預け払い機[genkinjidouazukebaraiki] automatic teller machine
現金自動預金支払機[genkinjidouyokinshiharaiki] automatic teller machine
古自動車[furujidousha] used car
後追い自殺[atooijisatsu] following someone's example, and committing suicide
最小自乗法[saishoujijouhou] least-squares method