- (sometimes capital)
a person skilled in ninjutsu, a Japanese martial art characterized by stealthy movement and camouflage
WordReference Random House Unabridged Dictionary of American English © 2025
nin•ja
(nin′jə),USA pronunciation n., pl. -ja, -jas. (often cap.)
- a member of a feudal Japanese society of mercenary agents, highly trained in martial arts and stealth (ninjutsu), who were hired for covert purposes ranging from espionage to sabotage and assassination.
- Middle Chinese, equivalent. to Chinese rěn + zhě)
- Japanese, equivalent. to nin- endure + -ja, combining form of -sha person (
Collins Concise English Dictionary © HarperCollins Publishers::
'ninja' also found in these entries (note: many are not synonyms or translations):