: 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.
Featuring everything from blockbuster franchises to cinematic classics, here are the 16 best sci-fi and horror films streaming on Paramount+. Ilana Gordon, Entertainment Weekly, 29 Dec. 2025 As tension builds ahead of the nostalgic sci-fi show's series finale, Randy Havens — who plays Scott Clarke, the informative science teacher the rest of the cast relies on for random facts — debunked online rumors that there's a secret, extended cut of the show's fifth and final season. Rachel Raposas, PEOPLE, 29 Dec. 2025 Film credits include the Netflix romantic drama Girl Haunts Boy, the supernatural thriller The Inheritance opposite Bob Gunton, and the sci-fi drama Anthem of a Teenage Prophet. Greg Evans, Deadline, 29 Dec. 2025 This sci-fi horror feature from Apple TV slots into our roundup because of its pure entertainment value and captivating performances from Miles Teller and Anya Taylor-Joy. Jeff Spry, Space.com, 27 Dec. 2025 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 31 Dec. 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!