In Spanish it is more appropriate to use the term güija, according to the RAE. It is the name of a wooden board that has an alphabet and numbers with which a supposed contact can be established with spirits that do not belong to the earthly plane. It's the name of a 2014 supernatural horror film starring Olivia Cook, directed by Stiles White.
The Ouija board was the commercial version of a game that appeared during the spiritualism craze at the end of the 19th century that supposedly allowed communication with spirits or ghosts of people who had already died. It is a table with written words (Yes, No, Hello, Goodbye), numbers, digits and an alphabet, as well as a pointer that the players as a medium move to indicate them according to the wish of a supernatural entity invoked to form a message. The name is the combination of the words oui (yes affirmative in French) ja (also the affirmation, but in German), and is pronounced 'uiyá' although in English it is usually said transliterated as it is. And to complicate matters further, it has its own version in our language as güija.
