(uncountable) Amateur fiction created by fans, incorporating the characters and concepts of a commercial media property, typically without permission from the author or owner.

Fiction based on real historical events, but in which the characters are not real, and the minor events may not be realistic.

Fiction that has a greater than normal length

Alternative spelling of microfiction

plural of slash fiction

(uncountable) A genre of fan fiction focusing on romantic and/or sexual relationships between characters of the same sex (typically men). / (countable) A work in the genre of slash fiction

Of or pertaining to science fiction

(uncountable) Fiction about fans and fandom created by members of fandom, incorporating real or fictional members of fandom as characters. / (countable) A work of faan fiction.

(colloquial) science fiction movie or television program

plural of faan fiction