noun
martial arts; military arts; the art of war
Refers to the skills, techniques, and philosophy of warfare and martial arts. Often used in compound words like 武士道 (bushidō) and 文武両道 (bunbu ryōdō).
彼は武の道を究めるために修行を続けた。
He continued his training to master the way of martial arts.
noun
military force; the sword
Emphasizes the power or authority of the military, or the use of armed force. 'The sword' is a figurative extension.
国を守るには武の力も必要だ。
To protect a country, military force is also necessary.
noun
Archaic sense referring to courage in battle. Rarely used in modern Japanese outside historical contexts.
古い文献では、武は武士の勇気を表す言葉として使われた。
In old texts, 武 was used as a word expressing the bravery of warriors.
noun
military officer; military man
Refers to a person serving in the military. This usage is somewhat dated and often appears in historical or formal contexts.
彼は若い頃、武を志して軍隊に入った。
In his youth, he aspired to be a military man and joined the army.