| Subject | English | Spanish |
| energ.ind., el. | limited frequency unannounced access | acceso no programado con frecuencia limitada |
| energ.ind., el. | limited frequency unannounced access | Acceso no anunciado de frecuencia limitada |
| gen. | unannounced audit | auditoría sin previa notificación |
| tech., law | unannounced inspection | inspección sin preaviso |
| tech., law | unannounced inspection | Inspección no anunciada |
| fin. | unannounced investigation | investigación sin previo aviso |
| comp., MS | Unannounced Transfer | Transferencia no anunciada (A button on Phone Controls that transfers the current phone call without the user remaining on the line to announce the call) |