訓 いまし(める) ・ 音 カイ
Sino-Vietnamese: giới
Two hands (廾) holding a halberd (戈): standing guard, as in Vietnamese cảnh giới (vigilance) and giới luật (precepts).
Stroke data: KanjiVG (CC BY-SA 3.0) — kanjivg.tagaini.net
失敗を今後の戒めにする。 (しっぱいをこんごのいましめにする)
I will make this failure a lesson for the future.