| Acronym | Meaning |
 | ECL | Emitter Coupled Logic (electronics) |
| HIDACZ | High-Density Airspace Control Zone (high Dak Zed/zee) |
| JP | Japan (ISO 3166 Digram) -Justice Of The Peace |
| BSOD | Blue Screen Of Death (distinct From BSD) |
| JFO | Journal Of Field Ornithology |
| CBOL | Consortium For The Barcode Of Life |
| HRH | His (or Her) Royal Highness |
| AS | Arsenic |
| ER | Erbium |
| NAAFI | Navy |
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