ninja

• 名词，尤指日本历史上受过武术和忍术训练的人，常受雇从事间谍、破坏或暗杀活动。也泛指擅长隐秘行动、潜入和游击战术的人。

A noun referring to a person, especially in historical Japanese context, trained in martial arts and ninjutsu, often hired for espionage, sabotage, or assassination.

1. Historical Japanese warriorB1formal

   A covert agent or mercenary in feudal Japan, skilled in espionage, sabotage, and unconventional warfare.

   忍者

   • The ninja moved silently through the castle at night.
   • Historical ninja were often hired for their stealth and combat skills.
   • Legends tell of ninja who could disappear into the shadows.

2. Skilled martial artistA2informal

   A person highly trained in ninjutsu and other martial arts, often associated with stealth and agility.

   忍者

   • He trained for years to become a modern ninja.
   • The movie features a ninja who fights with incredible speed.
   • She practices ninja techniques in her martial arts class.