i Register
In some senses, fantasize is marked as British, US. Watch for register when choosing this word.
verb
To indulge in fantasy; to imagine things only possible in fantasy.
I fantasized about my ideal date.
To portray in the mind, using fantasy.
Not that Mom and I didn't have our "shared experiences" — it's just that I'd like to forget most of them. I'd rather fantasize us together in that little cafe.
Actress Dana Delany fantasizes about making love with two men.