| Acronym | Meaning |
 | LIE | Liechtenstein (ISO 3166 Trigram) |
| GRP | Graphite Reinforced Plastic |
| AGN | Active Galactic Nucleus |
| PZ | Panama Canal Zone (ISO 3166 Digram; Obsolete 1980) -Pickup Zone |
| SIN | Social Insurance Number (Canada) |
| UNGEGN | United Nations Group Of Experts On Geographic Names |
| MNB C | Multinational Brigade Centre (KFOR) |
| CTIS | Central Tire-Inflation System |
| RPL | Reverse Polish Lisp |
| LLNL | Lawrence Livermore National Laboratory |
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