Wiktionary
s.f.
n. (alternative form of lang=en SF)
Usage examples of "s.f.".
He said he would find it fun and wouldn't mind helping out an aging s.f. writer.
If, on the other hand, she is tricked by some of my light and entertaining touches into publishing the article, I will be delighted, for it will mean that a first-rate outlet will be printing an essay on s.f. that does present it in a poignantly heroic light and I will be so proud.
I did not know this when I began writing s.f., but nearly 40 years of involvement has taught it to me.
However, as time went on, s.f. became unsatisfactory and my return (which I always planned) was inhibited.