extr - figh
- extra fare
- extra flight
- extra section flight
- extract
- extractor
- extrasolar
- extraterrestrial
- extraterrestrial astronomy
- extraterrestrial complex
- extraterrestrial demonstration
- extraterrestrial disposal
- extraterrestrial energy source
- extraterrestrial investigation
- extraterrestrial macroengineering
- extraterrestrial material
- extraterrestrial navigation
- extraterrestrial noise
- extraterrestrial object
- extraterrestrial observatory
- extraterrestrial plasma
- extraterrestrial propellant production method
- extraterrestrial propellant production method-operated vehicle
- extraterrestrial propellant spacecraft
- extraterrestrial solar radiation
- extraterrestrial transportation system
- extravehicular activity
- extreme aft center-of-gravity
- extreme boring dimensions
- extreme difficulty
- extreme forward center-of-gravity
- extreme impact damage
- extremely high frequency
- extremely improbable
- extremism
- extremist
- extremist elements
- extremity
- extricate
- extrication
- eye
