Distributed Interactive Simulation. / (military, US) Defense Investigative Service / (stock ticker symbol) Walt Disney Company.

(Internet slang) A member of the alt.fan.pratchett newsgroup, for fans of the author Terry Pratchett.

(dated, informal) An area in the body of a car behind the rear seat, such as the back of a station wagon, storage well in a VW bug, etc. / A very remote time or place.

(anatomy) Calot's triangle