| Acronym | Meaning |
 | ATWA | Air |
| CFZ | Critical Friendly Zone |
| IPR | In Progress Review - Intellectual Property Rights - Intelligence Production Requirement |
| CND | Campaign For Nuclear Disarmament - Computer Network Defence |
| CUPS | Common Unix Printing System |
| ECTHR | European Court Of Human Rights |
| EK | Equatorial Guinea (FIPS 10-4 Country Code) - Exakelvin |
| ALS | Amyotrophic Lateral Sclerosis - Automatic Landing System |
| ACLOS | Automatic CLOS (missile Control System) |
| ERI | Eritrea (ISO 3166 Trigram) |
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