| Acronym | Meaning |
 | ASDIC | Allied Submarine Detection Investigation Committee (Sonar) |
| SC | Sardinian Language (ISO 639-1 Code) |
| AFSCN | U.S. Air Force Satellite Control Network |
| ABN | Australian Business Number (a Number Issued By The Australian Government As Registration Of A Business And Used For Taxation Purposes) |
| IJWP | Interim Joint Warfare Publication |
| SDH | Synchronous Digital Hierarchy |
| JFTX | Joint Field Training Exercise |
| IRN | Iran (ISO 3166 Trigram) |
| EH | Exahenry - Western Sahara (ISO 3166 Digram) |
| EUS | Basque Language (ISO 639-2 Code) |
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