noun
Refers to the historical group of masterless samurai from Akō domain who avenged their lord in the early 18th century. Often used in historical and cultural contexts.
赤穂浪士の討ち入りは、忠義の象徴として語り継がれている。
The raid of the 47 Ronin has been passed down as a symbol of loyalty.
忠臣蔵 is the popular dramatized version of the 47 Ronin story, while 赤穂浪士 refers specifically to the historical group itself.
From 赤穂 (Akō, the domain name) + 浪士 (rōnin, masterless samurai). The term directly names the historical group.