Tsurugi

"Tsurugi" (長剣 pronounced TSU RU GI) is the kun-yomi (Japanese reading) of the kanji 剣; the on-yomi (Chinese reading) is "ken" (pronounced (KEN). It is used in the west to refer to a specific type of Japanese straight, double-edged sword no longer in common use. The Japanese use it for any broadsword--Excalibur, for example, or any number of Chinese heroes' weapons or Chinese sword (劍 pinyin jian4).

Notice the three writings of the same character (劍 剑 剣) are Traditional Chinese, Simplified Chinese and Japanese Kanji respectively.

See also katana, tachi, wakizashi.