- A
- AC / DC Alternative Current / Direct Current
- B
- BED Battery Energy Density
- BLI Boundary Layer Ingestion
- BPR By-Pass Ratio
- BWB Blended Wing Body
- C
- CFD Computational Fluid Dynamics
- COP21 Paris Climate Conference
- COTS Commercial Off-The-Shelf
- CS2 CleanSky 2
- D
- DEP Distributed Electric Propulsion
- E
- ECM Engineering Coordination Memo
- EIS Entry Into Service
- EMC ElectroMagnetic Compatibility
- EMI ElectroMagnetic Interferences
- EPU Electric Propulsion Unit (motors, power electronics and power cables)
- EWIS Electric Wiring Interconnection System
- EASA European Union Aviation Safety Agency)
- F
- FC Fuel Cell
- G
- GA Grant Agreement
- GAD General Acoustics Data
- GHG Green House Gas
- H
- HEP Hybrid-Electric Propulsion
- HQ Handling Qualities
- HP / LP High Pressure / Low Pressure
- HTSC High Temperature SuperConductivity
- K
- KPI Key Performance Indicator
- M
- M Mach number
- MTOW Maximum Take-Off Weight
- O
- OEM Original Equipment Manufacturer
- OGV Outlet Guide Vane
- P
- PAX Commercial passenger
- PMC Project Management Committee
- PMO Project Management Officer
- R
- REG Regional (aircraft)
- S
- SC Steering Committee
- SMR Short and Medium Range
- SRIA Strategic Research and Innovation Agenda
- T
- TLARs Top Level Aircraft Requirements
- TRL Technology Readiness Level