| Subject | English | Bulgarian |
| bank. | backup contingency payment | допълнително извънредно плащане |
| comp., MS | backup copy | архивно копие (A duplicate of a program, a disk, or data, made either for archiving purposes or for safeguarding files) |
| comp., MS | backup designated router | резервен маршрутизатор (An OSPF router that forms adjacencies with all other routers on a multiple access network and becomes the designated router when the designated router becomes unavailable) |
| comp., MS | backup file | архивен файл (A duplicate of a program, a disk, or data, made either for archiving purposes or for safeguarding files) |
| bank. | backup lump sum payment | допълнително сумарно плащане |
| comp., MS | backup media pool | набор носители за архивиране (A logical collection of data-storage media that has been reserved for use by Microsoft Windows Backup. Backup uses Removable Storage to control access to specific media within a library) |
| comp., MS | Backup Operators group | група на операторите с право на архивиране (A type of local or global group that contains the user rights you need to back up and restore files and folders. Members of the Backup Operators group can back up and restore files and folders regardless of ownership, permissions, encryption, or auditing settings) |
| comp., MS | Backup Recovery Migration tool | миграционен модул за архивиране и възстановяване (A command line utility that is used to backup and restore print configuration and items (print queues, drivers, print processors, etc) during a print migration) |
| comp., MS | backup set catalog | каталог на архивен набор (A summary of the files and folders that have been saved in a backup set) |
| comp., MS | backup withholding | резервно удържане на данък (An IRS tax rule in the United States that requires notified payers to withhold a set percentage from payments made to payees who cannot be identified due to missing or incorrect taxpayer identification numbers on tax forms) |