異常終了[ijoushuuryou] abnormal termination (e.g. of a program)
一了簡[ichiryoukan] at one's discretion
完了[kanryou] completion
ご了承[goryoushou] acknowledgement
校了[kouryou] proofreading completed

三校終了[sankoushuuryou] third and final proof
了う[shimau] to finish
修了[shuuryou] completion (of a course)
修了証書[shuuryoushousho] diploma
了える[oeru] to finish