The crossword solution for the term 'PREFIX FOR FICTION' is 'META, ' which is a four-letter word. The prefix 'meta' is derived from the Greek word 'metá, ' which means 'AFTER' or 'BEYOND.' In literature, it is used to describe works that are self-referential or that comment on their own genre or themes. It is often used to describe works of fiction that explore the nature of storytelling and the relationship between the author, the characters, and the audience.