posted on Aug, 25 2008 @ 08:23 AM
It depends on your definition
(I know thats what your asking for)
2. from another world
1. An unnaturalized foreign resident of a country. Also called noncitizen.
2. A person from another and very different family, people, or place.
3. A person who is not included in a group; an outsider.
alien - a form of life assumed to exist outside the Earth or its atmosphere
Aliens Plural More then 1
This term is used to define the Extraterestrial kind and Also the Elegal kind.
IE The Aliens live on mars
IE. Those Bloody Aliens are taking my job !!
Its a verbose word that has many meanings and inflections..
It can be used to describe just about anything unknown or different..
[edit on 25-8-2008 by wolfmanjack]