: 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.
Pick up my sci-fi novels the Herokiller series and The Earthborn Trilogy. Paul Tassi, Forbes.com, 9 May 2025 Geek out at the All Monsters Attack convention, where Japanese kaiju and all species of sci-fi fantasy creatures will be feted. Jennifer Day, Chicago Tribune, 9 May 2025 In the sci-fi franchise, Darth Vader—adorned in a black helmet, mask and armor—is one of the main antagonists, who serves as the ruthless enforcer for a tyrannical galactic empire. Jasmine Laws, MSNBC Newsweek, 9 May 2025 It was long pegged as a shoo-in for Cannes (including on IndieWire’s own wish list), while reports said the sci-fi epic was racing to the finish. Ryan Lattanzio, IndieWire, 8 May 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 14 May. 2025.

Kids Definition

sci-fi

noun
ˈsī-ˈfī
sci-fi adjective

More from Merriam-Webster on sci-fi

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