| Acronym | Meaning |
 | PAM | Precision Attack Missile |
| HALT | Hungry Angry Lonely Tired |
| PIN | Personal Identification Number |
| RA | Radium |
| TK | Terakelvin - Tokelau (ISO 3166 Digram) |
| SAGAT | Situation Awareness Global Assessment Technique |
| LVEF | Left Ventricular Ejection Fraction |
| EM | ElectroMagnetism/ElectroMagnetic |
| GQ | Equatorial Guinea (ISO 3166 Digram) -Gentlemen's Quarterly (magazine) -Guam (FIPS 10-4 Territory Code) |
| ACID | Atomicity |
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