The ōdachi (大太刀) (large/great sword) or nodachi (野太刀, field sword)[2][3][4] is a type of traditionally made Japanese sword (日本刀, nihontō)[5][6] used by the samurai class of feudal Japan. The Chinese equivalent of this type of sword in terms of weight and length is the miao dao, and the Western battlefield equivalent (though less similar) is the longsword or claymore.