Kodachinoun
A short Japanese sword, built like the katana but with a shorter blade
Kodachi
A kodachi (小太刀, こだち), literally translating into , is one of the traditionally made Japanese swords (nihontō) used by the samurai class of feudal Japan. Kodachi are from the early Kamakura period (1185–1333) and are in the shape of a tachi.
Katananoun
A type of Japanese longsword or tr=nihontō, having a single edge and slight curvature, historically used by samurai and ninja.
Katana
A katana (刀 or かたな) is a Japanese sword characterized by a curved, single-edged blade with a circular or squared guard and long grip to accommodate two hands. Developed later than the tachi, it was used by samurai in feudal Japan and worn with the blade facing upward.