忍にん術じゅつにんじゅつFreq.FrequencyTop 50,000じ字FuriganaMeanings1nounninjutsu; ninja techniquesmartial arts›Refers to the traditional Japanese martial art encompassing espionage, sabotage, and stealth techniques used by ninja.彼かれは忍にん術じゅつの達たつ人じんだ。He is a master of ninjutsu.
