The meaning of the Acronym TARDIS is...

TARDIS is

• Apparatus For Really Distant Interstellar Sojourns
• Transporting Activities Round Districts In Swansea
• Tracking And Relative Direction Imbedded System

More Meanings For TARDIS:

• The Apparatus for Really Distant Interstellar Sojourns
• Time And Relative Dimensions In Space
• Time And Relative Dimensions In Space
• The Army 'Round Doncaster Is Stationary
• Time And Relative Dimensions In Space
• Apparatus For Really Distant Interstellar Sojourns
• Transporting Activities Round Districts In Swansea
• Tracking And Relative Direction Imbedded System
• Time And Resource Distribution In Schools
• Totally Awful Rotten Diatribe In Spelling

TARDIS is also in:

• Astronomy
• Educational
• Funnies
• Physics
• Science Fiction
• Unfiled