: 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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Shinsuke Sato has given a significant portion of his professional career to the Netflix Japan sci-fi series Alice in Borderland, a situation that is no mean feat given how prolific the Japanese filmmaker has been in recent years, regularly releasing one or perhaps two feature films a year. Abid Rahman, HollywoodReporter, 2 Nov. 2025 Our list of sci-fi horror novels spans from 20th-century classics to modern masterpieces, all testing how far humanity goes before reason falters and horror takes over. Kenna Hughes-Castleberry, Space.com, 31 Oct. 2025 James' grandma, the actress Helen Horton, voiced the computer known as Mother in Ridley Scott's 1979 sci-fi classic. Wesley Stenzel, Entertainment Weekly, 31 Oct. 2025 Deadline has confirmed that Warner Bros is in advanced negotiations for Shiver, which will bring Keanu Reeves together to star in a sci-fi pic directed by Deadpool‘s Tim Miller. Anthony D'alessandro, Deadline, 31 Oct. 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 9 Nov. 2025.

Kids Definition

sci-fi

noun
ˈsī-ˈfī
sci-fi adjective

More from Merriam-Webster on sci-fi

Last Updated: - Definition revised
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