/ ˈfæntəsi; NAmE / noun ( pl. -ies )
1.
[ C ] a pleasant situation that you imagine but that is unlikely to happen :
his childhood fantasies about becoming a famous football player
2.
[ C ] a product of your imagination :
Her books are usually escapist fantasies.
3.
[ U ] the act of imagining things; a person's imagination :
a work of fantasy
Stop living in a fantasy world .
••
WORD ORIGIN
late Middle English : from Old French fantasie , from Latin phantasia , from Greek imagination, appearance , later phantom , from phantazein make visible. From the 16th to the 19th cents the Latinized spelling phantasy was also used.