1) Japanese sword type 
The Kanji: 脇差 Hiragana: わきざし meaning `side inserted sword`) is one of the traditionally made Japanese swords (nihonto) worn by the samurai class in feudal Japan. The wakizashi has a blade between 30 and 60 cm (12 and 24 in), with wakizashi close to the length of a katana being called o-wakizashi and wakizashi closer to tantō length .....
Short sword carried with the katana by the samurai.
Medium length sword from 1 shaku to 2 shaku (12 and 24 inches)
Short sword (blade between 12 and 24 inches).