異常[ijou] strangeness
異常高温[ijoukouon] abnormally high temperatures
異常終了[ijoushuuryou] abnormal termination (e.g. of a program)
異常発生[ijouhassei] plague
家常[kajou] family custom

経常収支[keijoushuushi] current account balance
経常費[keijouhi] current expenses
五常[gojou] the five cardinal Confucian virtues (justice, politeness, wisdom, fidelity and benevolence)
恒常[koujou] constancy
三角系異常[sankakukeiijou] triangle anomaly

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