| Acronym | Meaning |
 | HIH | His (or Her) Imperial Highness |
| AAPC | Accounting And Auditing Policy Committee |
| IPTS | Institute For Prospective Technological Studies |
| GYY | Gary/Chicago International Airport (IATA Airport Code) |
| CMOS | Canadian Meteorological And Oceanographic Society - Complementary Metal-Oxide-Semiconductor |
| IW | Information Warfare |
| RAP | Radio Access Point - Radiological Assistance Program (U.S. Department Of Energy) - Rear Area Protection - Recognised [Operating/Operational] Air Picture - Recurring Advance Payment - Relational Associative Processor - Reliable Acoustic Path - Rocket-Assis |
| MZN | Mozambique Metical (ISO 4217 Currency Code) |
| YS | Yoctosiemens |
| ACAS | Aboriginal Children's Advancement Society - Advisory |
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