: 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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Also in the works is an adaptation of Semper Maternus, her original sci-fi thriller featured on the 2022 Black List, which is being produced by Stacey Sher and her Shiny Penny Productions, with Salma Hayek and Riley Keough attached to star. Matt Grobar, Deadline, 5 Aug. 2026 Following the original Spaceballs movie — a parody of contemporary sci-fi films, particularly Star Wars — Moranis and Brooks mainly kept in contact by phone. Rachel Raposas, PEOPLE, 5 Aug. 2026 Monsterama Con The 13th annual retro horror and sci-fi convention focuses on cinema, art, comics, literature and media with special guests, vendors, screenings and more. Mary Caldwell, AJC.com, 4 Aug. 2026 While every other Hughes film is grounded in ordinary everyday experiences only slightly heightened for comedic effect, Weird Science stands apart as his big cartoonish swing at a high concept sci-fi comedy. Al Shipley, SPIN, 4 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 7 Aug. 2026.

Kids Definition

sci-fi

noun
ˈsī-ˈfī
sci-fi adjective

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