Gun powder is a type of explosive mixture that is used to propel bullets or other projectiles from firearms. The word "gun powder" is often used interchangeably with the term "black powder." However, there are several other synonyms for this term as well. These include terms like "smokeless powder," "blasting powder," "rocket powder," and "double base powder." Each of these terms refers to a slightly different type of explosive mixture that has unique properties and uses. For example, smokeless powder is typically used in modern firearms, while blasting powder is used in construction and mining applications. No matter which term you use, it's always important to handle explosive materials with care and caution.