: 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.
Stranger Things star Noah Schnapp wanted an appropriate goodbye with one Hawkins resident in particular as the sci-fi series concluded last month. Raechal Shewfelt, Entertainment Weekly, 7 Jan. 2026 Prior to that, the pair helmed Significant Other, a sci-fi thriller for Paramount starring Maika Monroe and Jake Lacy. Matt Grobar, Deadline, 6 Jan. 2026 This new entry in the storied universe will welcome sci-fi queen Sigourney Weaver to the franchise. Dan Heching, CNN Money, 5 Jan. 2026 Season 5 of the beloved Netflix sci-fi thriller marked the end of an era with Eleven, Mike, Dustin, Lucas, Max, and Will, and their victorious defeat against Vecna. Lea Veloso, StyleCaster, 5 Jan. 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 10 Jan. 2026.

Kids Definition

sci-fi

noun
ˈsī-ˈfī
sci-fi adjective

More from Merriam-Webster on sci-fi

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