: of, relating to, or being science fiction
a sci-fi film
sci-fi noun

Examples of sci-fi in a Sentence

Recent Examples on the Web
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Waititi and Dahvi Waller co-wrote the script for the film that adapts author Kazuo Ishiguro‘s 2021 dystopian sci-fi novel. Ryan Gajewski, HollywoodReporter, 22 June 2026 In a new trailer for dystopian sci-fi film Klara and the Sun, Lyonne embraced a rare hair transformation with a bold chin-grazing chop. Lara Walsh, InStyle, 22 June 2026 Not to mention, given the movie’s sci-fi setting, Waymo was a good fit. Anthony D'alessandro, Deadline, 22 June 2026 Over its second weekend in theaters, Steven Spielberg’s talky, two-hour-25-minute sci-fi chase-pursuit potboiler Disclosure Day declined by a steep 62 percent from its opening ticket-taking tally. Chris Lee, Vulture, 22 June 2026 See All Example Sentences for sci-fi

Word History

Etymology

shortened from science fiction

First Known Use

1953, in the meaning defined above

Time Traveler
The first known use of sci-fi was in 1953

Browse Nearby Words

Cite this Entry

“Sci-fi.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/sci-fi. Accessed 29 Jun. 2026.

Kids Definition

sci-fi

noun
ˈsī-ˈfī
sci-fi adjective

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