Gen is most commonly seen as a contraction (such as Gen.) and it may refer to: Book of Genesis. General officer. Generation#Western world as in GenX, GenZ, etc. Genitive case. Gen may also refer to: Gen (film), 2006 Turkish horror film directed by Togan Gökbakar. Gen (Street Fighter), a video game character from the Street Fighter series. Gen Fu, a video game character from the Dead or Alive series. Gen language, a language of Togo. Gen-san, a character in the anime series Sky Girls. Gen Asagiri (あさぎり ゲン (浅霧 幻)), a character in the anime and manga series Dr. Stone.
https://en.wikipedia.org/wiki/Gen