Extraterrestrial is an adjective, meaning not of this Earth.
Alien or martian. Those words mean extraterrestrial.
Extraterrestre is the French word for "extraterrestrial".
I am trying to draw an extraterrestrial for the story that I am writing.
Extraterrestrial life.
There is no confirmed record of any extraterrestrial landing on Earth.
The word alien is a noun. It is a life form of an extraterrestrial origin.
part of speech
The part of speech for this particular word is a noun.
The part of speech for "answer" is a noun.
adverb
what part of speech is beneath
The potential discovery of extraterrestrial intelligence would have spurred Nixon to deliver the speech that Nick Sagan discusses in the novel "Farewell Atlantis." Nixon had prepared a speech in case of such a discovery, reflecting on the implications for humanity and the world. However, this speech was never delivered as no conclusive evidence of extraterrestrial intelligence was ever found during Nixon's presidency.
The part of speech for "explicit" is an adjective.
The part of speech for "twirl" is a verb.
The part of speech for "unfamiliar" is an adjective.
The part of speech of "came" is a verb.
The part of speech for "lecturer" is a noun.