please check. "bushido" has two word. "bushi" is samurai. "do" is the way of man's spirit of life.

 Your understanding of "bushido" is mostly correct. Here's a breakdown:

• Bushido (武士道): This is the compound word, meaning "the way of the warrior."
• Bu (武): This kanji character means "martial," "military," or "warrior."
• Shi (士): This kanji character means "scholar," "gentleman," or "samurai."
• Do (道): This kanji character means "way," "path," or "doctrine."

So, while "bu" is indeed related to the samurai class, it's not the sole component of the word "bushido." The "shi" component also plays a significant role, as it emphasizes the moral and ethical aspects of the samurai code.

In essence, "bushido" is a comprehensive code of conduct that encompasses not only martial prowess but also virtues like loyalty, honor, courage, and self-discipline. It's a philosophy of life that guided the samurai class and continues to influence Japanese culture today.