| Acronym | Definition |
|---|
| RAIL | Random Array of Independent Libraries |
| RAIL | Redundant Array of Internet Links |
| RAIL | Remotely Assisted Instructional Learning (online education and training; Hewlett Packard) |
| RAIL | Runway Alignment Indicator Lights |
| RAIL | Runtime Assembly Instrumentation Library (University of Coimbra; Portugal) |
| RAIL | Remote Application Integrated Locally (Microsoft) |
| RAIL | Redundant Array of Inexpensive Libraries |
| RAIL | Rolling Action Item List |