| Acronym | Meaning |
 | PD | Per Diem (Latin: (calculated) By The Day) - Point Of Departure - Police Department - Postal District - Potential Difference - Principal Deputy - Public Domain |
| HUMINT | Human Intelligence (military Parlance) |
| IHH | Idiopathic Hypogonadotropic Hypogonadism |
| ZC | Zettacoulomb |
| LSVW | Light Support Vehicle |
| PTL | Patrol -Primary Target Line |
| BRI | Bathroom Readers Institute (publishers Of Series Of Uncle John's Bathroom Readers Books) |
| HJD | Heliocentric Julian Day |
| HVU | High Value Unit (military) |
| YC | Yoctocoulomb |
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