The word cartridge has different meanings, depending on context:

• Cartridge (electronics) - a module to be inserted into a larger piece of equipment, for example a games cartridge in a games console, or an ink cartridge in a printer.
• 8-track audio tapes are often called cartridges.
• Cartridge (weaponry) a round of charge-and-bullet ammunition.
• The removable part of a record player (turntable) arm holding the stylus (needle) - see magnetic cartridge.
• Cartridge paper is a high quality type of heavy paper used for illustration, drawing, etc. It was originally used for making cartridges of the weaponry kind, hence the name.