| Acronym | Meaning |
| WIPP | [Nuclear] Waste Isolation Pilot Project |
| TOS | Tape Operating System - Terms Of Service - Tramiel Operating System |
| HCF | Highest Common Factor |
| G | Gram |
| ENVL | Envelope |
| PAYE | Pay As You Earn |
| MEF | U.S. Marine Expeditionary Force - Minimum Essential Facility - Mission Essential Force |
| CP | Canadian Pacific - Check Point - Command Post |
| AA | Achieved Availability - Alcoholics Anonymous -Armed Forces Americas (postal Symbol) - Aruba (FIPS 10-4 Territory Code) -Assembly Area - Automobile Association- Avenue Of Approach |
| CIMMYT | Centro Internacional De Mejoramiento De Maz Y Trigo (Spanish |