[n] imagination unrestricted by reality; "a schoolgirl fantasy"
[n] something many people believe that is false; "they have the illusion that I am very wealthy"
[n] fiction with a large amount of fantasy in it; "she made a lot of money writing romantic fantasies"
fancy, illusion, phantasy, phantasy
bubble, dream, fairyland, fantasy life, fantasy world, fiction, ignis fatuus, imagination, imaginativeness, misconception, phantasy life, phantasy world, pipe dream, science fiction, vision, will-o'-the-wisp, wishful thinking