Definition of fantasize verb from the Oxford Advanced Learner's Dictionary

 

fantasize

 verb
(British English also -ise)verb
BrE BrE//ˈfæntəsaɪz//
 
; NAmE NAmE//ˈfæntəsaɪz//
 
Verb Forms present simple I / you / we / they fantasize
BrE BrE//ˈfæntəsaɪz//
 
; NAmE NAmE//ˈfæntəsaɪz//
 
he / she / it fantasizes
BrE BrE//ˈfæntəsaɪzɪz//
 
; NAmE NAmE//ˈfæntəsaɪzɪz//
 
past simple fantasized
BrE BrE//ˈfæntəsaɪzd//
 
; NAmE NAmE//ˈfæntəsaɪzd//
 
past participle fantasized
BrE BrE//ˈfæntəsaɪzd//
 
; NAmE NAmE//ˈfæntəsaɪzd//
 
-ing form fantasizing
BrE BrE//ˈfæntəsaɪzɪŋ//
 
; NAmE NAmE//ˈfæntəsaɪzɪŋ//
 
 
jump to other results
[intransitive, transitive] fantasize (about something) | fantasize (that…) to imagine that you are doing something that you would like to do, or that something that you would like to happen is happening, even though this is very unlikely He sometimes fantasized about winning the gold medal.Extra examples I used to fantasize that of all the girls in the class he would choose me. Many people fantasize about winning the lottery. Whatever might be happening in your life, you can always fantasize.
See the Oxford Advanced American Dictionary entry: fantasize