- illusion, fantasy, phantasy, fancy - something many people believe that is false; "they have the illusion that I am very wealthy"
--1 is a kind of misconception
--1 has particulars: bubble; will-o'-the-wisp, ignis fatuus; wishful thinking - fantasy, phantasy - fiction with a large amount of fantasy in it; "she made a lot of money writing romantic fantasies"
--2 is a kind of fiction
--2 has particulars: science fiction - fantasy, phantasy - imagination unrestricted by reality; "a schoolgirl fantasy"
--3 is a kind of imagination, imaginativeness, vision
--3 has particulars:pipe dream, dream; fantasy life, phantasy life; fantasy world, phantasy world, fairyland