| Acronym | Meaning |
 | KT | Christmas Island (FIPS 10-4 Territory Code) -Knight Of The Order Of The Thistle - Knights Templar |
| MAA | Mathematical Association Of America |
| AH | Ampere-hour |
| GRC | Greece (ISO 3166 Trigram) |
| OSA | Order Of St. Augustine |
| AXP | Ambulance EXchange Point |
| ACTD | Advanced Concept Technology Demonstration |
| LU | Loonatics Unleashed |
| DNDO | U.S. Domestic Nuclear Detection Office |
| MPA | Millipascal |
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