: 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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Released in March, the new sci-fi flick ‘Project Hail Mary’ features Puerto Rican puppeteer James Ortiz, who stars opposite Ryan Gosling. Carlos Aguilar, Los Angeles Times, 7 Apr. 2026 Netflix also gave a shoutout to a famous Argentine comic strip and a big sci-fi name. Georg Szalai, HollywoodReporter, 7 Apr. 2026 Juan Salvo – played by Ricardo Darín – and his friends embark on a desperate struggle for survival in the sci-fi series. Stewart Clarke, Deadline, 7 Apr. 2026 Movie pulled in $130 million from 4,200 North American theaters to arrive as the year’s biggest opening — dethroning the Ryan Gosling sci-fi crowd pleaser Project Hail Mary, which claimed the title of 2026’s biggest debut just seven days earlier. Chris Lee, Vulture, 6 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 10 Apr. 2026.

Kids Definition

sci-fi

noun
ˈsī-ˈfī
sci-fi adjective

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