: 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
Examples are automatically compiled from online sources to show current usage. Read More Opinions expressed in the examples do not represent those of Merriam-Webster or its editors. Send us feedback.
Scott ventures into sci-fi once more with ‘The Dog Stars,’ a postapocalyptic thriller that trades zombies for pandemics and asks whether hope can outlast catastrophe. Emily Zemler, Los Angeles Times, 26 Aug. 2026 Billie Piper is feeling relaxed about the future of Doctor Who, even if fans are concerned that the sci-fi series is in something of a spin at the BBC. Jake Kanter, Deadline, 24 Aug. 2026 Netflix’s new sci-fi thriller The Last House begins with a simple nightmare. Solitaire Townsend, Forbes.com, 23 Aug. 2026 Washington state native Kyle MacLachlan burst onto the big screen in 1984 in David Lynch’s version of sci-fi epic Dune and then cemented his status as a pop-culture icon in Lynch’s landmark early ’90s series Twin Peaks. Mike Desimone, Robb Report, 23 Aug. 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 1 Sep. 2026.

Kids Definition

sci-fi

noun
ˈsī-ˈfī
sci-fi adjective

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