NASA Abbreviations and Acronyms

1. ENA
   Enable
2. ENBL
   Enable
3. ENC
   Encode
4. ENCD
   Encode
5. END
   Eff End Effeclor
6. END
   Eff End Effector
7. END EFF
   End Effector
8. ENDF
   Evaluated Neutron Data File
9. ENDI
   End Item
10. ENG
    Engineering
11. ENG
    ElectronYstagnogram
12. ENGR
    Engineering
13. ENS
    En Route Nuclear Shuttle
14. ENT
    Entry
15. ENVIRON
    Space Natural Environment Model
16. EO
    Engineering Office
17. EO
    Engineering Order
18. EO
    Earth Observer
19. EO
    Earth Orbit
20. EOAS
    Engineering Order Accountability System

Last updated: May 6, 2025 — Total entries: 14,020