: 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.
More recently, he’s starred in Nick Cassavetes’ neo-noir thriller God Is a Bullet and NBC’s high-concept sci-fi drama Debris. Matt Grobar, Deadline, 6 Oct. 2025 Scott is correct about many of his movies — particularly his historical and sci-fi titles — having a timeless quality. James Hibberd, HollywoodReporter, 6 Oct. 2025 One Battle After Another's hot streak is already cooling down, leaving the runway clear for Jared Leto in an LED catsuit to nab the gold with this sci-fi threequel. Ryan Coleman, Entertainment Weekly, 5 Oct. 2025 Conclusion With engineering breakthroughs and evolving automotive and aviation standards, flying cars are no longer a distant sci-fi fantasy. Atharva Gosavi, Interesting Engineering, 3 Oct. 2025 See All Example Sentences for sci-fi

Word History

Etymology

shortened from science fiction

First Known Use

1954, in the meaning defined above

Time Traveler
The first known use of sci-fi was in 1954

Browse Nearby Words

Cite this Entry

“Sci-fi.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/sci-fi. Accessed 10 Oct. 2025.

Kids Definition

sci-fi

noun
ˈsī-ˈfī
sci-fi adjective

More from Merriam-Webster on sci-fi

Last Updated: - Updated example sentences
Love words? Need even more definitions?

Subscribe to America's largest dictionary and get thousands more definitions and advanced search—ad free!