Top Definition
A term used to describe the genre of Science Fiction within books, films, comics, games and television shows.

Sci-Fi shortened form of Science Fiction.
Star Wars, Star Trek, Dr Who, Battlestar Galatica, Babylon 5 etc.
por Siona Beht 22 de Junho de 2004

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Short for Science Fiction.
My favorite genre is Sci Fi.
por Downstrike 22 de Maio de 2004

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The best genre ever witch combines fiction with the science of tomorrow.
Some of the best sci movies are Godzilla and Star wars.
por Scioli 30 de Maio de 2005

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Noun: The nickname given to followers of Scientology (Scientologists). Often used in the City of Clearwater, Florida, which is the "spiritual headquarters" of Scientology. Considered to be insultive by Sci-Fis themselves.
1. A bunch of Sci-Fis just moved in next door...they're taking over the neighborhood.
2. Traffic on Ft. Harrison wouldn't be so bad if it weren't for the hundreds of Sci-Fis trying to cross the street.
por SaveClearwater 18 de Junho de 2006

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