| Acronym | Meaning |
| BLCSE | Battle Laboratory Constructive Simulation Environment |
| GPL | General Public License |
| LEP | Large Electron-Positron Collider |
| RPN | Reverse Polish Notation |
| TRW | Thompson Ramo Wooldridge Inc. |
| KKK | Ku Klux Klan |
| UML | Unified Marxist-Leninist Communist Party Of Nepal - Unified Modeling Language - University Of Massachusetts Lowell - User-Mode Linux |
| LST | Landing Ship |
| EJ | Exajoule |
| ICM | Improved Conventional Munition - Integrated Collection Management - International Congress Of Mathematicians - Iraq Campaign Medal |