| Acronym | Meaning |
 | JTN | Johnston Atoll (ISO 3166 Trigram; Obsolete 1986) |
| FOE | Friends Of The Earth |
| OARSI | Osteoarthritis Research Society International |
| DOA | Dead On Arrival - Dead Or Alive |
| NIMBY | Not In My Back Yard |
| FFT | Fast Fourier Transform - Final Fantasy Tactics |
| JCDB | Joint Common Data Base |
| CVSD | Continuous Variable Slope Delta (modulation) |
| WC | Water Closet - Winston Churchill - World Cup (sports) |
| ORD | O'hare International Airport In Chicago |
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