fantasize

• fantasise (non-Oxford British English)
• phantasise (non-Oxford British English, dated)
• phantasize (dated)

From fantasy +‎ -ize.^[1][2]

• IPA^(key): /ˈfæntəˌsaɪz/

• Audio (Southern England):

  (file)

fantasize (third-person singular simple present fantasizes, present participle fantasizing, simple past and past participle fantasized) (American spelling, Oxford British English)

1. (intransitive) To indulge in fantasy; to imagine things only possible in fantasy.

   I fantasized about my ideal date.

2. (intransitive, transitive) To portray in the mind, using fantasy.
   • 1984 August 11, Janice Irvine, “Secrets of Fear, Shame, and Love”, in Gay Community News, volume 12, number 5, page 9:

     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.

   • 1995 March 22, “Seinfeld with Madonna? 'Cosmo' reveals sex fantasies”, in The Arizona Republic:

     Actress Dana Delany fantasizes about making love with two men.