For purposes of a UFO discussion yes that is what alien means. And no fallen angels don’t make the cut, unless you can explain why they needed UFOs.
If someone said they’re a Martian that would JUST be alien, not demon or fallen angel. Unless you’ve got proof that Mars is heaven or hell.
If you believe in GOD then you know..GOD creator of the Universe threw Satan and many many of his angels out on their ear...
They lost there seat in heaven, however they still had power, not the power of GOD but power to decieve people and to cause chaos on earth when the *Fall* happened in the garden....Some say Satan and his alien demons did inhabit Mars maybe some still live there, I don’t know.
Alien beings have spacecraft and so do Angels according to the Book of Enoch...Flying Chariots etc....
Can you prove Aliens are not on earth?
It’s plausible that fallen angels need UFO’s because God limited their . . . spiritual resources.
Don’t know that He did. But it’s plausible.