| Acronym | Meaning |
| MDDS | Maintenance Decision Support System |
| TOPEX | Topographic Ocean Experiment |
| CDMS | Cryospheric Data Management System |
| ESU | Electrostatic Unit |
| GOSIP | Government Open Systems Interconnect Protocol |
| GED | Global Ecosystem Dynamics |
| OI | Optimal Interpolation |
| AOPR | Associated Offices Of Primary Responsibility |
| AFP | Approved Funding Program |
| TIAA | Teachers Insurance And Annuity Association |