Definitions from Wiktionary (Sf)

▸ noun:  a book size one sixty-fourth of the size of a standard uncut sheet of paper (less 7.5 cm (3") in height)
▸ noun:  (fiction) Initialism of science fiction or speculative fiction, often used to avoid having to choose between the two.
▸ noun:  Initialism of square feet.
▸ noun:  Initialism of spontaneous fission. [(nuclear physics) A form of radioactive decay: nuclear fission that occurs spontaneously, instead of being induced by an external stimulus.]
▸ noun:  (basketball) Initialism of small forward. [(basketball) A forward who is the shorter of the two forward positions, and often plays behind the power forwards.]
▸ noun:  (sports) Abbreviation of semifinal. [(sports) A playoff in the round with only four players or teams left, the stage before the final.]
▸ noun:  (in personal ads) Initialism of single female.
▸ noun:  Initialism of San Francisco. [A major coastal city and county in California, United States, formerly Yerba Buena (pre-1847).]
▸ noun:  (Ireland, UK politics) Initialism of Sinn Féin; an Irish political party. [(Irish politics) An Irish political party committed to the reunification of Ireland.]
▸ noun:  (video games) Initialism of Street Fighter.
▸ noun:  (motor racing) Initialism of Super Formula.
▸ adjective:  (in personal ads) Initialism of smoker-friendly: not objecting to people who smoke tobacco
▸ noun:  (dated) Alternative form of SF (science fiction)
▸ noun:  Abbreviation of significant figure(s).





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