: 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.
The event featured high-flying stunts, air-pumping cold thrusters, and a driverless demonstration that looked straight out of a sci-fi movie. — Mrigakshi Dixit, Interesting Engineering, 16 Oct. 2026 Francis Lawrence, no stranger to dystopian sci-fi thanks to his many installments of The Hunger Games franchise, is attached to direct the adaptation of the first novel, also titled Red Rising. — Borys Kit, HollywoodReporter, 16 Oct. 2026 Paramount has acquired film rights to Pierce Brown‘s New York Times bestselling sci-fi book series Red Rising, enlisting Francis Lawrence to direct an adaptation of the first installment, Deadline can confirm. — Justin Kroll, Deadline, 16 Oct. 2026 The star has boarded a new untitled sci-fi to be written and directed Alex Garland for A24. — Alex Ritman, Variety, 15 Oct. 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 18 Oct. 2026.

Kids Definition

sci-fi

noun
ˈsī-ˈfī
sci-fi adjective

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