: 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.
Forbes is protected by reCAPTCHA, and the Google Privacy Policy and Terms of Service apply. Follow me on Twitter, YouTube, Bluesky and Instagram. Pick up my sci-fi novels the Herokiller series and The Earthborn Trilogy. Paul Tassi, Forbes, 26 Feb. 2025 Padalecki starred alongside Ackles on the CW sci-fi drama for 15 seasons, from its debut on what was then the WB in 2005 through its series finale in 2020. Ethan Shanfeld, Variety, 26 Feb. 2025 Marsden is also known for his role as Teddy in HBO hit sci-fi series Westworld and in the X-Men movie franchise as Scott Summers/Cyclops. Raechal Shewfelt, EW.com, 26 Feb. 2025 The Stranger Things actress stars alongside Chris Pratt, Ke Huy Quan, Jason Alexander, Giancarlo Esposito and Stanley Tucci in the sci-fi film set in an alternate, futuristic version of the '90s universe where a robot uprising was thwarted. Sabienna Bowman, People.com, 25 Feb. 2025 See All Example Sentences for sci-fi

Word History

Etymology

shortened from science fiction

First Known Use

1954, in the meaning defined above

Time Traveler
The first known use of sci-fi was in 1954

Browse Nearby Words

Cite this Entry

“Sci-fi.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/sci-fi. Accessed 9 Mar. 2025.

Kids Definition

sci-fi

noun
ˈsī-ˈfī
sci-fi adjective

More from Merriam-Webster on sci-fi

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