劍

劍 (Japanese simplified form 剣, Chinese simplified form 剑), the Chinese character for "double edged sword", may refer to:
 * Jian (劍, 剑)
 * Tsurugi (sword) (剣)
 * Korean sword (검, 劍)
 * Shinken (真剣)
 * Kenjutsu (剣術)
 * Kendo (剣道)
 * Kumdo (劍道)