Ghouls: Man eating monsters
CCG: Takes care of the ghouls
Quinque: Weapon made out of a ghoul's kakuhou
Kakugan: The eye of a ghoul; red iris, black sclera, crimson veins.
Quinxes only have one kakugan
Kagune: A ghoul's retractable predatory organ
If the frames of a quinx break they'll be killed as an S rated ghoul, however that only occurs in extreme condition
Haise: rinkaku type
Urie: koukaku type
Shirazu: Ukaku type
Saiko: Rinkaku type
Mutsuki: Bikaku type
Haise sometimes hears Kaneki whisper