Excellent, envy, endavour, end, entertainment, entertain, and enederman
Any word on Earth that starts with D.
Zagato (Aston-Martin)
most likely
Yes.
There has not been any found yet.
Omaha, Nebraska starts with "O."
IntercomIntellectImpossibleInsistInclineIrritable
unselfish
No, in recent history no human has set foot on any planet other than earth !
Any word that starts with the letter 'U' elsewhere.
Vulture.
butter