1. ninjutsu; combat and stealth techniques used by ninja for espionage, sabotage, assassination, etc.Martial arts
Wikipedia definition
2. Ninjutsusometimes used interchangeably with the term ninpō is the martial art, strategy, and tactics of unconventional warfare and guerrilla warfare as well as the art of espionage purportedly practiced by the shinobi (commonly known outside of Japan as ninja). While there are several styles of "modern ninjutsu," the historical lineage of these styles is disputed.
Read “Ninjutsu” on English Wikipedia
Read “忍術” on Japanese Wikipedia
Read “Ninjutsu” on DBpedia


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