: 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.
After starring in Ridley Scott's sci-fi horror film Alien in 1979, Weaver returned as the big-screen heroine in James Cameron's sci-fi action follow-up Aliens in 1986. Carson Blackwelder, PEOPLE, 9 Sep. 2025 The satire, sci-fi, and body horror movie follows a Chinese-American teenager (Shirley Chen), who, feeling insecure about her race, takes a drastic step that causes a chain reaction throughout her own and her family’s lives. Anthony D'alessandro, Deadline, 8 Sep. 2025 Launched in 2003, this sci-fi MMORPG has played host to epic spaceship battles and intergalactic heists on a scale that most other multiplayer games can only dream of. Fran Ruiz, Space.com, 8 Sep. 2025 Absolutely spectacular stuff, for sci-fi fans and those looking for thrills of any stripe. Literary Hub, 8 Sep. 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 9 Sep. 2025.

Kids Definition

sci-fi

noun
ˈsī-ˈfī
sci-fi adjective

More from Merriam-Webster on sci-fi

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