Production and Component Terms (Términos de Producción y Componentes)
| Spanish Term | English Translation | Simplified Definition |
| Aleación | Alloy | A mixture of two or more metals used in coin manufacturing. |
| Bimetálico | Bimetallic | A coin that is composed of two different metals joined together (e.g., some Euros). |
| Cospel | Planchet (or Blank) | The blank metal disc (planche) before it is struck to become a coin. |
| Moneda Revestida | Clad Coin | Coins with a core and an outer layer of different metals (e.g., U.S. 10¢, 25¢, and 50¢ coins since 1965). |
| Troquel | Die | The engraved metal stamp used to impress the design (images, value, mottos) onto the planchet. |
| Anverso | Obverse | The front side or «heads» of a coin. |
| Reverso | Reverse | The back side or «tails» of a coin. |
| Canto | Edge | The outer rim of a coin, considered its «third side.» |
| Borde | Rim | The raised ridge on both sides of a coin that protects the design from wear. |
| Collar | Collar | The metal piece that holds the planchet and prevents the metal from spreading excessively during striking. |
| Acuñación | Striking | The process of stamping a planchet with the design using the die. |
| Recocido | Annealing | The process of heating the planchets in a furnace to soften the metal before striking. |
| Grabador | Engraver | The artist who sculpts the model of a coin’s design in bas-relief (or digital relief). |
| Marca de Ceca | Mint Mark | A small letter or symbol on the coin that identifies the Mint facility where it was produced. |
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Design and Legends (Diseño y Leyendas)
| Spanish Term | English Translation | Simplified Definition |
| Busto | Bust | A portrait on a coin, usually including the head, neck, and upper shoulders. |
| Campo | Field | The flat surface of the coin not covered by the design or inscriptions. |
| Relieve | Relief | The part of the coin design that is raised above the surface. |
| Incusa | Incuse | The part of the design that is sunk or pressed in below the surface (the opposite of relief). |
| Inscripción | Inscription | The words, numbers, or letters stamped on a coin or medal. |
| Leyenda | Legend | The main lettering or motto that appears on the coin (e.g., «LIBERTY»). |
| Lema | Motto | A short phrase inscribed to express a national principle (e.g., «E Pluribus Unum»). |
| Variedad | Variety | A minor but recognizable change in the basic design type of a coin. |
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Valuation and Collecting (Valoración y Coleccionismo)
| Spanish Term | English Translation | Simplified Definition |
| Moneda | Coin | A flat metal piece with a design, issued by the government as money with a declared value. |
| Medio de Intercambio | Medium of Exchange | Anything (coin, bill) that people accept as value for trade. |
| Moneda de Curso Legal | Legal Tender | Currency or bill issued by the government that is official money for paying debts. |
| Denominación | Denomination | The face value of a coin (e.g., 1 cent, 1 dollar). |
| Valor Nominal | Face Value | The value for which the coin can be spent (e.g., 10¢), as opposed to its metal or collector value. |
| Valor Intrínseco | Intrinsic Value | The current market value of the precious metal (gold, silver, platinum) contained in a coin. |
| Lingotes | Bullion | Precious metal (gold, silver, platinum) in the form of bars or coins, used for value storage. |
| Moneda de Lingote | Bullion Coin | A precious metal coin traded at current metal prices, not for its numismatic value. |
| Condición | Condition | The physical state of a coin. |
| Grado | Grade | A standardized rating that indicates the level of wear or preservation of a coin. |
| MS-70 | MS-70 | Abbreviation for «Mint State 70,» designating a coin in perfect state of preservation. |
| Brillo de Ceca | Mint Luster | The original shine (dull or satiny) found on coins that have not circulated. |
| Numismática | Numismatics | The study and collecting of items used as money (coins, bills, medals, etc.). |
| Fecha Clave | Key Date | A very scarce mint date that is difficult to find and expensive to complete a series. |
| Serie | Series | A collection that includes all dates and mint marks of a specific design and denomination. |
| Casa de la Moneda | Mint | The place where coins are manufactured under government authority. |
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Striking Types and Errors (Tipos de Acuñación y Errores)
| Spanish Term | English Translation | Detailed Description |
| Acuñación Comercial | Business Strike | Coins produced for general circulation (those used daily). |
| Sin Circular | Uncirculated (or Mint State) | A coin that has never been used in daily commerce. At the U.S. Mint, it refers to a coin produced with a special process for a brilliant finish. |
| Prueba | Proof | Special production coin for collectors. It’s made with highly polished planchets and dies, often struck multiple times, resulting in a mirror-like background and a frosted foreground. |
| Conmemorativo | Commemorative | A special coin or medal issued to honor an important person, place, or event. |
| Error | Error | A coin that was incorrectly produced and, by mistake, released into circulation. |
| Descentrado | Off-Center | Describes a coin whose design was struck misaligned by the press, missing parts of its image. |
| Marca de Bolsa | Bag Mark | A small mark or scratch on a coin caused by contact with other coins during the mint’s packaging process. |
| Falsificación | Counterfeit | A fake coin manufactured to look genuine. |
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Organizations and Storage (Organizaciones y Almacenamiento)
| Spanish Term | English Translation | Simplified Definition |
| Asociación Numismática Americana (ANA) | American Numismatic Association (ANA) | A non-profit educational organization that promotes the study and collecting of money worldwide. |
| Losa | Slab | Nickname for the sealed, rectangular protective holders used by grading companies to encapsulate certified coins. |
| Mylar® | Mylar® | Brand name of a polyester film used for safe storage of coins. |

