Gold-lined touch hole refers to a small hole in a firearm's breech that ignites the gunpowder. Some synonyms for this term include primer hole, firing hole, charge hole, ignition hole, or detonation hole. It is a crucial part of a gun and is responsible for firing the bullet. Typically, it is lined with gold to prevent corrosion and ensure longevity. The touch hole is one of the preeminent components of a firearm, and its proper maintenance and functioning are crucial to the success of the weapon. Understanding the synonyms for gold-lined touch hole is essential for gun enthusiasts, hunters, and individuals interested in historical firearms.