| Ebay words | Meaning |
| U | Used (for stamps or postcards) |
| U # | The Scott Stamp Catalogue value numbering system used in the United States for cut squares |
| U/M | Unmounted Mint (for stamps; also MNH) |
| UACC | Universal Autograph Collector's Club |
| UB | Undivided Back (for 1901-1907 postcards; also UDV or UND/B); Unboxed |
| UDV | Undivided Back (for 1901-1907 postcards; also UB or UND/B) |
| UK | United Kingdom (for stamps) |
| ULBC | Upper Left corner of Back Cover (for books or magazines) |
| UNC | Uncirculated (for coins) |
| UND/B | Undivided Back (for 1901-1907 postcards; also UB or UDV) |
| UNP | Unplayed (for records) |
| UNU | Unused (for stamps or postcards) |
| UPC | Universal Product Code (also known as Barcode Number) |
| UPD | Unpaid Item Dispute |
| UPI | Unpaid Item (item not paid for by winning bidder) |
| UPS | United Parcel Service |
| URBC | Upper Right corner of Back Cover (for books or magazines) |
| URFC | Upper Right corner of Front Cover |
| URL | Uniform Resource Locator (web address) |
| USPS | United States Postal Service |
Feb 4, 2007
EBAY GLOSSARY OF TERMS (beginning U)
The most full, complete, and comprehensive glossary of terms used by eBay users. It contains terms, abbreviations, acronyms, jargons, lingo together with their corresponding meanings and definitions most commonly used in auctions of collectibles, antiques, electronics, apparel, sporting goods and more.
