| Acronym | Meaning |
 | AWD | Many |
| ECM | Electronic Counter-Measures - Enterprise Content Management |
| SPCO | Single-Pole Change Over |
| NCAA | National Collegiate Athletic Association (NC Double A) |
| TRANSCOM | U.S. Transportation Command |
| MPAA | Motion Picture Association Of America |
| PRN | Pro Re Nata (Latin |
| RCCO | Royal Canadian College Of Organists |
| HIMAD | High To Medium Altitude Air Defence (see Also H/MAD) |
| HO | Hiri Motu Language (ISO 639-1 Code) |
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