Iaido (居合道 Iaidō), abbreviated with iai (居合), is a modern Japanese martial art/sport.
Iaido is associated with the smooth, controlled movements of drawing the sword from its scabbard or saya, striking or cutting an opponent, removing blood from the blade, and then
replacing the sword in the scabbard. While new practitioners of iaido may start learning with a wooden sword (bokken) depending on the teaching style of a particular instructor, most
of the practitioners use the blunt edged sword, called iaitō. Few, more experienced, iaido practitioners use a sharp edged sword (shinken).