| Acronym | Meaning |
| ISTAR | Intelligence |
| TMJ | TemporoMandibular Joint (syndrome) |
| CYP | Cyprus (ISO 3166 Trigram) - Cyprus Pound (ISO 4217 Currency Code) |
| AIC | African Independent Church |
| PD | Per Diem (Latin: (calculated) By The Day) - Point Of Departure - Police Department - Postal District - Potential Difference - Principal Deputy - Public Domain |
| PA | Picoampere |
| PAMELA | Payload For Antimatter Matter Exploration And Light-nuclei Astrophysics |
| BBN | Bolt |
| ISIS | Institute For Science And International Security |
| SJC | Supreme Judicial Court Of Massachusetts (note: The Highest Court In The State Of Maine Is Also Called The Supreme Judicial Court) |