: 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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After an uncredited rewrite by Gary Ross (The Hunger Games), Wyatt further retooled the Desert Warrior script with his screenwriter wife, Erica Beeney (with whom the director had co-written the 2019 sci-fi thriller Captive State), shifting the focus to the female protagonist. Chris Lee, Vulture, 27 Apr. 2026 Castmembers Kevin Sussman, Lauren Lapkus, Brian Posehn and John Ross Bowie took the stage at CCXP Mexico City to tease their project that combines comedy with sci-fi and is set to begin streaming on HBO Max in July. Ryan Gajewski, HollywoodReporter, 26 Apr. 2026 Regardless, this is a very underrated Scott Adkins gem that's mandatory viewing for action and sci-fi fans. Sergio Pereira, Space.com, 25 Apr. 2026 One thing a century of sci-fi has taught us is that the future will not be rushed. Chris Klimek, NPR, 25 Apr. 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 Apr. 2026.

Kids Definition

sci-fi

noun
ˈsī-ˈfī
sci-fi adjective

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