武 appears in 武术 (wǔshù, martial arts), 武器 (wǔqì, weapon), 武汉 (Wǔhàn, the city), 武力 (wǔlì, military force). Contrasts with 文 (wén, civil/literary).
culture
The 文武 (wén-wǔ) duality — civil and martial — is central to Chinese thought. An ideal leader masters both: literary refinement (文) and martial strength (武).