Blunderbusses are large, old-fashioned guns that were commonly used in the 18th century. There are several synonyms for the word blunderbusses, including musket, shotgun, rifle, and firearm. Each of these words refers to a different type of gun but shares some similarities with blunderbusses, such as being used for hunting or warfare and having a long barrel and a powerful shot. Other synonyms for blunderbusses include cannon, mortar, and artillery, which are larger and more powerful weapons used for military purposes. Whatever term you use, these weapons are a testament to the ingenuity of their creators and their enduring place in history.