noun

• A small flat case containing magnetic tape on two reels, used to record and play back audio and video material.
• Any similar small cartridge, such as for a computer disk or cassette air conditioner
• (photography) A lightproof container for photographic film.
• (genetics) A modular DNA sequence encoding one or more genes for a single biochemical function.
• (cycling) A set of sprockets mounted onto a splined shaft on the freehub.
• A saggar (ceramic container used in a kiln)