| 3D | three-dimensional |
| AI | artificial intelligence |
| ASME | American Society of Mechanical Engineers |
| CAD | computer-aided design |
| CBOM | condition-based operations and maintenance |
| CFD | computational fluid dynamics |
| CMAS | calcium, magnesium, and alumina silicate |
| CMC | ceramic matrix composite |
| CO | carbon monoxide |
| CO2 | carbon dioxide |
| DHS | Department of Homeland Security |
| DoD | Department of Defense |
| DOE | Department of Energy |
| GE | General Electric |
| ICAO | International Civil Aviation Organization |
| LES | large eddy simulation |
| LNG | liquefied natural gas |
| MURI | Multidisciplinary University Research Initiative |
| NOx | oxides of nitrogen |
| OEM | original equipment manufacturer |
| ORR | Operational Readiness Review |
| PGC | pressure gain combustion |
| R&D | research and development |
| RAM | reliability, availability, and maintainability |
| RANS | Reynolds averaged Navier Stokes |
| RQL | rich-burn, quick-quench, lean burn |
| SiC | silicon carbide |
| TRL | technology readiness level |