遺訓[ikun] dying instructions
音訓[onkun] kanji readings
漢文訓読[kanbunkundoku] reading a Chinese text in Japanese
義訓[gikun] reading of a kanji by meaning
訓える[oshieru] to teach

教訓[kyoukun] lesson
訓育[kuniku] discipline
訓誡[kunkai] warning
訓示[kunji] instruction

教誨[kyoukai] counselling (often of imprisoned criminals by a chaplain, etc.)
教誨師[kyoukaishi] chaplain (e.g. of a prison)

訓誨[kunkai] giving guidance