Sf
adj, name, noun ·Uncommon ·Advanced level
Definitions
- 1 Initialism of science fiction or speculative fiction, often used to avoid having to choose between the two. abbreviation, alt-of, countable, initialism, uncountable
- 2 Alternative form of SF (science fiction) alt-of, alternative, dated
"But some discussion of the complex relationship between “allohistory” and sf is appropriate here, as the genres overlap in certain ways. Classical allohistory— such as Trevelyan's "What if Napoleon had won the Battle of Waterloo?" and Churchill's "If Lee had not won the Battle of Gettysburg" —is a rigorously consistent thought-experiment in historical causality."
- 3 a book size one sixty-fourth of the size of a standard uncut sheet of paper (less 7.5 cm (3") in height)
- 4 Initialism of square feet. abbreviation, alt-of, countable, initialism, uncountable
- 5 Abbreviation of significant figure(s). abbreviation, alt-of
Show 4 more definitions
- 6 Initialism of spontaneous fission. abbreviation, alt-of, countable, initialism, uncountable
- 7 Initialism of small forward. abbreviation, alt-of, countable, initialism, uncountable
- 8 Abbreviation of semifinal. abbreviation, alt-of, countable, uncountable
- 9 Initialism of single female. abbreviation, alt-of, countable, initialism, uncountable
- 1 Initialism of smoker-friendly: not objecting to people who smoke tobacco. abbreviation, alt-of, initialism
- 1 Initialism of San Francisco. abbreviation, alt-of, initialism
- 2 Initialism of Sinn Féin; an Irish political party. Ireland, UK, abbreviation, alt-of, initialism
- 3 Initialism of Street Fighter. abbreviation, alt-of, initialism
- 4 Initialism of Super Formula. abbreviation, alt-of, initialism
Example
More examples"But some discussion of the complex relationship between “allohistory” and sf is appropriate here, as the genres overlap in certain ways. Classical allohistory— such as Trevelyan's "What if Napoleon had won the Battle of Waterloo?" and Churchill's "If Lee had not won the Battle of Gettysburg" —is a rigorously consistent thought-experiment in historical causality."
Etymology
Abbreviation of sixty-fourth
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Data sourced from Wiktionary, WordNet, CMU, and other open linguistic databases. Updated March 2026.