| Acronym | Meaning |
| MMC | Machinist's Mate |
| HS | Hassium |
| ABC | Abstinence |
| H.C. | Honoris Causa (Latin |
| LABVIEW | Laboratory Virtual Instrumentation Engineering Workbench |
| IDEA | Individuals With Disabilities Education Improvement Act |
| NIU | Niue (ISO 3166 Trigram) |
| IE | Interlingue Language (ISO 639-1 Code) |
| ABA | American Bar Association - American Basketball Association - American Beverage Association - American Bicycle Association - American Birding Association - Australian Broadcasting Authority |
| AT | Anti-Tank -Ashmore And Cartier Islands (FIPS 10-4 Territory Code) - Austria (ISO 3166 Digram) -Advanced Technology (IBM Personal Computer/AT) |