The term MEDIUM ALTERNATIVE can be broken down into two crossword solutions: RARE (4 letters) and OUIJA (5 letters). RARE is an adjective meaning uncommon or infrequent, while OUIJA is a board game that is used to communicate with spirits. The term MEDIUM ALTERNATIVE could refer to a less common form of mediumship, which is the practice of communicating with spirits. Ouija boards are often used as a tool for this purpose.