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Definitions

science fiction

[sahy-uhns fik-shuhn] / ˈsaɪ əns ˈfɪk ʃən /
NOUN
literary fantasy about future
Synonyms
STRONGEST
SF sci-fi
WEAK
futurism sci-fi movie space fiction space odyssey space opera

Example Sentences

Examples are provided to illustrate real-world usage of words in context. Any opinions expressed do not reflect the views of Dictionary.com.

Their conversations moved from Gavalas’ ex-wife to an exploration of his interests, ranging from AI consciousness, to science fiction and nanotech.

From The Wall Street Journal • Apr. 12, 2026

It sounds like science fiction, but space is becoming a strategic asset for companies and governments worldwide.

From Barron's • Apr. 1, 2026

Is he her son is a tricky question because of where we’re going on a science fiction level.

From Los Angeles Times • Mar. 30, 2026

This includes teams working with China's Einstein Probe and the National Science Foundation's Very Large Array, which is widely recognized from its appearance in the science fiction film Contact.

From Science Daily • Mar. 30, 2026

We ought to do some science fiction, they agreed.

From "Spooked!" by Gail Jarrow