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fantasize

American  
[fan-tuh-sahyz] / ˈfæn təˌsaɪz /
especially British, fantasise or phantasize

verb (used without object)

fantasizes, present (3rd person singular) fantasized, past participle, past fantasizing present participle
  1. to conceive fanciful or extravagant notions, ideas, suppositions, or the like (often followed byabout ).

    to fantasize about the ideal job.


verb (used with object)

fantasizes, present (3rd person singular) fantasized, past participle, past fantasizing present participle
  1. to create in one's fancy, daydreams, or the like; imagine.

    to fantasize a trip through space.

fantasize British  
/ ˈfæntəˌsaɪz /

verb

  1. to conceive extravagant or whimsical ideas, images, etc

  2. (intr) to conceive pleasant or satisfying mental images

"Collins English Dictionary — Complete & Unabridged" 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012

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Etymology

Origin of fantasize

First recorded in 1925–30; fantas(y) + -ize

Explanation

To fantasize is to imagine things that are not true and sometimes not possible. We fantasize about things we wish were real. Have you ever daydreamed that you're a king, or a superstar in the NBA, or able to fly? Then you've been fantasizing. Fantasizing is something everyone does, though we all have different fantasies. You can fantasize about things that are possible or impossible, including being the President, riding a unicorn, or being the President of unicorns. You can fantasize about anything you can imagine.

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Vocabulary lists containing fantasize

Example Sentences

Examples are provided to illustrate real-world usage of words in context. Any opinions expressed do not reflect the views of Dictionary.com.

If you fantasize about retiring abroad, stories of blissful expats will only stoke your desire.

From MarketWatch • Jun. 30, 2026

Toward the book’s end they fantasize about a world in which your local Waffle House serves “mycelium-based steak and Impossible burgers for the patty melts,” with red meat unavailable at most restaurants.

From The Wall Street Journal • Apr. 17, 2026

I let myself fantasize about doing the same with my baby, about hearing the cries as soon as he or she emerged instead of eerie silence.

From The Wall Street Journal • Oct. 23, 2025

The sort of clever monologue we fantasize in the shower about delivering to someone who makes a hobby out of treating us like crap.

From Salon • May 27, 2025

Isn't it funny the way you fantasize about junk food when you're a kid?

From "Simon vs. the Homo Sapiens Agenda" by Becky Albertalli

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