The demon-slaying weapons used by demon slayers hold great significance in their battle against demons. These weapons are specially crafted to be effective against demons, who are often powerful and dangerous creatures. The weapons are usually imbued with special powers or properties that make them capable of defeating demons, such as being able to cut through their tough hides or weaken their supernatural abilities. Additionally, these weapons are not only tools for combat but also symbolic representations of the demon slayers' commitment to their cause and their willingness to confront evil head-on.