| Initial | Term | Definition |
| A | A.N.A. | Abbreviation for the "American Numistmatic Association". |
| A | A.U. | See "About Uncirculated" or "Almost Uncirculated". |
| A | About Good | Heavily worn; date may be barely discernable. While notes more worn than AG are rarely collected, two additional grades are nevertheless used to characterize them. |
| A | About Uncirculated | Same as "Almost Uncirculated". Sometimes abbreviated as "AU". |
| A | Abrasion | Marks or small scratches on the surface of a coin where another coin or object has slid across or bumped the coin. Can also be caused by the coin sliding in a holder or coin drawer. Not as deep or noticeable as bag marks. Usually found on the high parts of a coin or in the open fields (background). |
| A | Account | A sum stated on paper (or in a magnetoelectronic data bank).A business transaction, especially one in which credit is used. |
| A | Account, money of | Money without physical representation (eg, coin, papermoney) used for accounting purposes only. Loosely, also "denominations" for which coins or papermonies do not exists; examples include one bit (USA$0.125), one mill ($0.001), and the British guinea (21 Shillings = £1/1/-). |
| A | Accumulation | A group of coins, sometimes not of any certain type or date. Also can be a "hoard". |
| A | Advertising Note | A Simulated note with no redeemable value, issued solely for advertising purposes. Advertising coins and stamps are conceivable. |
| A | AG | Elemental abbreviation for SILVER. |
| A | Album | A book-like holder with slots for storing coins. |
| A | Album friction or slide markings | See Friction. |
| A | Album page | One side of an album sheet. |
| A | Album sheet(s) | What an album is comprised of, in Jeopardeze. |
| A | Allegory | A symbol which metaphorically depicts a more complex concept. On papermonies, allegorical vignettes almost always in-clude at least one human figure. For example, Mercury, the Roman god of merchants & trading, is often found in allegories of transpor-tation, commerce, communication, and lately, telecommunications. |
| A | Allied Military Currency (-ies) | Occupation notes issued by the Allied Military Administration (USA, England, Free France, and USSR), shortly after the end of World War Two, for Austria, Germany, Italy, and France; slightly later also for Japan (USA only). |
| A | Alloy | A mixture of two or more metals melted into one compound. |
| A | Almost Uncirculated | A coin or paper money note that is very close to being uncirculated. Upon first glance it may appear uncirculated. When inspected closely it will have a slight amount of wear or friction. Same as "About Uncirculated". Sometimes abbreviated as "AU". |
| A | Alteration | See Altered Date. |
| A | Altered | Deliberately changed, usually unofficially and with the intent to illegally increase the face value or the collector value. With certain paper documents, such as a check, the name of either the payer or payee can be changed for illegal gain. |
