noun
A general term for military equipment, including both offensive weapons and defensive armor. Often used in historical or formal contexts.
博物館で昔の武具を見学した。
I viewed old arms and armor at the museum.
侍は戦いの前に武具を整えた。
The samurai prepared their weapons and armor before battle.
Compound of 武 (bu, 'military') and 具 (gu, 'tool, equipment'). The exact historical derivation is uncertain, but the combination naturally yields the meaning 'military equipment'.