sci-fi

adjective

ˈsī-ˈfī 

: 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

The 50-year-old wargaming firm has become a giant, with its sci-fi/fantasy tabletop games and paint-your-own miniature figurines bolstered by successful video games, a growing universe of fiction, and an upcoming Amazon Prime TV series starring Henry Cavill, Dispatch noted. —Tim McDonnell, semafor.com, 13 Jan. 2026

But 11/22/63, considered by many to be among the author's best novels, is more than just a bit of speculative sci-fi. —Randall Colburn, Entertainment Weekly, 13 Jan. 2026

This '90s sci-fi show dispatched a quartet of mismatched adventurers on a long-running series of adventures across parallel Earths — places where the Soviet Union rules the United States, or the Golden Gate Bridge is blue rather than orange. —Richard Edwards, Space.com, 12 Jan. 2026

The actress, who is nominated tonight for her role in the sci-fi comedy thriller Bugonia, arrived on the storied step-and-repeat looking out of this world. —Tessa Petak, InStyle, 11 Jan. 2026

Word History

Etymology

shortened from science fiction

First Known Use

1953, in the meaning defined above

Rhymes for sci-fi

• apply
• awry
• belie
• bely
• bigeye
• bonsai
• buckeye
• comply
• coxae
• decry
• defy
• deny

Kids Definition

sci-fi

noun

ˈsī-ˈfī

: science fiction

sci-fi adjective