| Acronym | Meaning |
| NIN | Nine Inch Nails (band) |
| MTF | Medical Treatment Facility - Message Text Format |
| IRS | U.S. Internal Revenue Service |
| EF | Exafarad |
| TJD | Truncated Julian Day |
| DMRB | Design Manual For Roads And Bridges |
| OARSI | Osteoarthritis Research Society International |
| TARDIS | Time And Relative Dimensions In Space (from Doctor Who) |
| ARRF | Allied Rapid Reaction Force |
| SUNY | State University Of New York (usually Pronounced Sue-knee) |