noun🔗ShareA Japanese martial art that is a collection of techniques originally practiced for Japanese espionage purposes, and includes methods of gathering information, nondetection, avoidance, and misdirection techniques. Used by ninja (忍者)."Studying ninjutsu could teach you how to move quietly and gather information without being seen. "militaryculturetraditionhistoryactionweaponChat with AIVocabulary GamePractice Reading