What does 教訓 mean?
教訓 is a Japanese noun meaning “lesson, precept, moral instruction” in English. It is written as 教訓 in kanji, きょうくん in hiragana, and kyoukun in romaji. This word is part of JLPT N1 vocabulary.
Example sentence
実例は教訓にまさる。
Example is better than precept.