: 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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These imaginative designs often used minimalist imagery and sci-fi characters not even included in the films, yet helped establish a particular mood, tone, and emotion to entice fans into their seats. Jeff Spry, Space.com, 4 May 2026 Subsequent toy lines added more sci-fi elements and introduced Evil-Lyn, Teela’s counterpart; Faker, He-Man’s villainous clone; and Tri-Klops and Trap-Jaw, Skeletor’s assistants, among others. Sanat Pai Raikarall, Encyclopedia Britannica, 4 May 2026 There’s a spacecraft and a robot and pirate references, all catnip for sci-fi and dystopia lovers and all very well done. Bethanne Patrick, Los Angeles Times, 1 May 2026 In the future of Ada Hoffman’s terrifyingly prescient sci-fi heist novel, humanity has settled Jupiter and AI owns all forms of storytelling, from information to entertainment. Literary Hub, 1 May 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 5 May. 2026.

Kids Definition

sci-fi

noun
ˈsī-ˈfī
sci-fi adjective

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