矛盾 （ムジュン） contradiction, inconsistency

矛盾原理 （ムジュンゲンリ） principle of contradiction (logic)

矛 （ほこ） long-handled Chinese spear, lance, pike, weapon, arms, grip of a bow, parade float decorated with long-handled Chinese spears

矛先 （ほこさき） point of a spear, spearhead, focus (of one's attack, criticism, etc.), aim, target, brunt, force (of an argument), edge

銅矛 （どうほこ） bronze hoko, bronze halberd, bronze spearhead

瓊矛 （ぬほこ） jeweled spear (jewelled)