Definition: "Utsunomiya" refers to a type of ancient Japanese sword that was often used in feudal times, with its main blades being made from oak or beech wood. The name comes from "utsumi," meaning "wood." It is not an actual word but refers to the style of construction and craftsmanship associated with these swords. This sword might have been designed for close combat or for ceremonial purposes, often used in battles between lords and minor feudal lords during this era.