| Acronym | Meaning |
 | AARP | (i/s) American Association Of Retired Persons (now Officially Known Only By The Initials) |
| MSM | Mount St Mary's School |
| UST | Underground Storage Tank |
| MORS | Military Operations Research Society |
| MJD | Modified Julian Day |
| UMES | University Of Maryland Eastern Shore |
| PAPI | Precision Approach Path Indicator (aviation) |
| HALT | Hungry Angry Lonely Tired |
| PJ | Petajoule |
| WOT | Waste Of Time |
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