noun

• A person whose business is to pack things; especially, one who packs food for preservation
• (computing) A software program that compresses code or data.
• (US) A ring of packing or a special device to render gastight and watertight the space between the tubing and bore of an oil well.
• (LGBT) An artificial penis or similar object worn by a drag king, trans man, etc., inside the trousers.
• (New Zealand) An object inserted to hold a space open for the purpose of alignment; a spacer or shim.
• (dated) A kind of trunk for luggage.
• (Australia) A packhorse.
• (Nigeria) A dustpan.
• A person who plays football for the Green Bay Packers professional football team.
• Clipping of meatpacker. [A person involved in the meatpacking industry, including slaughtering and meat processing]