| Acronym | Meaning |
 | LVEF | Left Ventricular Ejection Fraction |
| OFDA | U.S. AID?s Office Of Foreign Disaster Assistance |
| ZN | Zettanewton |
| 4D | Four-dimensional (usually Three Spatial Plus One Temporal Dimension |
| UW | University Of Washington |
| PAN | Punjabi Language (ISO 639-2 Code) |
| POTS | Plain Old Telephone Service (cf. PANS) - Postural Orthostatic Tachycardia Syndrome |
| IBA | Important Bird Area |
| GT | Gigatesla -Gran Turismo - Grand Touring -Guatemala (FIPS 10-4 Country Code; ISO 3166 Digram) |
| CZ | Combat Zone -Czech Republic (ISO 3166 And FIPS 10-4 Country Code Digram) |
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