| Acronym | Meaning |
 | AS | American Samoa (postal Symbol; ISO 3166 Digram) - Australia (FIPS 10-4 Country Code) |
| PSG | Pacific Seabird Group |
| UY | Uruguay (ISO 3166 And FIPS 10-4 Country Code Digram) |
| AMSU | Association For Managers In Students' Unions - Aviation Mat?riel Screening Unit |
| NY | New York (postal Symbol) |
| SIP | Session Initiation Protocol - State Implementation Plan - System Improvement Program - Systematic Investment Plan |
| JT | Johnston Atoll (ISO 3166 Digram; Obsolete 1986) -Junior Technician (RAF) |
| TOW | Tube-launched |
| VND | Vietnamese ??ng (ISO 4217 Currency Code) |
| J5 | Joint Strategic Plans & Policy Directorate |
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