Katana (刀) is a Japanese long sword (Daito,大刀), although in Japanese it self refers to all types of swords. Katana is kunyomi (Japanese title) of the form of kanji刀; while onyomi (called pinyin) is the kanji characters to. He was referring to the sword one eye, a special curved traditionally used by Japanese samurai.
Katana is usually paired with the wakizashi or shoto, but it looks like is made shorter, both used aleh warrior class members.
Katana is usually paired with the wakizashi or shoto, but it looks like is made shorter, both used aleh warrior class members.