武士

1. Origins, structure, and basic meaning

• Structure: 武士 is read ぶし and is a noun for a warrior belonging to Japan's historical warrior class.
• Basic usage: It is used in historical contexts, such as a story about defending a castle or a museum display of armor.

2. Common pitfalls and similar expressions

• Historical scope
  • It focuses on Japan's historical warrior class rather than on soldiers in general or modern military personnel.