The crossword solution for the term 'It's spotted in casinos' is DIE, which is a three letter word. DIE is a singular noun that refers to a cube with six faces, each of which has a different number of dots on it. It is commonly used in gambling games such as craps and is usually made of plastic or ivory. DIE are also used in board games, such as Monopoly, and can be found in many casinos around the world.