The word
"mod" is a shorthand term used to refer to a modification or a modified version. It is often used in the context of video games, where modding involves altering or enhancing the game's features, graphics, or mechanics.
Mod also sometimes refers to moderators, who are people responsible for monitoring and enforcing the rules on an online platform such as a forum or chat room. Overall,
"mod" means making changes to something or someone to improve or customize it.
Full definition