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1. A member of the ninja who were trained in martial arts and hired for espionage or sabotage or assassinations; a person skilled in ninjutsu
    
2. A class of 14th century Japanese who were trained in martial arts and were hired for espionage and assassinations

Derived forms: ninjas

Type of: class, mercenary, social class, socio-economic class, soldier of fortune, stratum

Encyclopedia: Ninja