n. In architecture, a corner or an angle. See quoin.n. The specific name given to various wedge-shaped pieces used for different purposes, as—n. for raising or lowering a piece of ordnance;n. for locking a printers' form;n. for fixing casks in their places, as on board a ship. See quoin.n. A die employed for stamping money.n. Hence A piece of metal, as gold, silver, copper, or some alloy, converted into money by impressing on it officially authorized marks, figures, or characters: as, gold coins; a copper coin; counterfeit coins.n. Collectively, coined money; coinage; a particular quantity or the general supply of metallic money: as, a large stock of coin; the current coin of the realm.n. Figuratively, anything that serves for payment, requital, or recompense.n. [F.] The clock of a stocking.To stamp and convert into money; mint: as, to coin gold.To make by coining metals: said of money.To represent on a coin.To make; fabricate; invent: as, to coin words.In tin-works, to weigh and stamp (tin blocks).To yield to the process of minting; be suitable for conversion into metallic money; be coinable.n. A quince.