The term "peak recoil" refers to the maximum force exerted by a firearm on its shooter during the act of firing. However, there are several other words that are used interchangeably to describe this force. One such synonym is "kick," which is commonly used in casual conversation. Another similar term is "recoil impulse," which refers to the overall pressure exerted on the shooter's body. Some also use the term "backblast" to describe the recoil, which suggests the idea of a physical force coming back towards the shooter. Regardless of the word used, peak recoil is an important factor to consider when using firearms, as it can affect accuracy, comfort, and safety.