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 are Traditional Chinese, Simplified Chinese and Japanese Kanji respectively.

See also katana, tachi, wakizashi, saya.