: 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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For television, Dorléac won Emmys in 1979 for his costume designs for the ABC sci-fi series Battlestar Galactica and in 2001 for the AMC dark comedy The Lot, set in 1930s Hollywood. Mike Barnes, HollywoodReporter, 29 July 2026 The first three projects that have been put into development include horror feature DeMonica, sci-fi drama The Continuers and the Marguerite Alibert series Bordello Princess. Nellie Andreeva, Deadline, 29 July 2026 Prime Video shared a first look at the series set in the world of Ridley Scott's sci-fi classic. Brendan Morrow, USA Today, 28 July 2026 With last week’s OpenAI incident evoking troubling scenes straight out of the most dystopian sci-fi novels, the tools, which are currently in preview mode, deserve a healthy dose of caution that Microsoft made no mention of. Dan Goodin, ArsTechnica, 27 July 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 30 Jul. 2026.

Kids Definition

sci-fi

noun
ˈsī-ˈfī
sci-fi adjective

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