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The term alien can be used in a couple different contexts. First, an alien is usually considered a person or object that does not belong or did not originate in the current place
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Alienation is most commonly known by someone distancing themselves from others. Sometimes it is referred to as a social disorder in which someone has difficulty relating with others
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Anything or anyone that does not belong in the environment of which they are found can be considered aliens. This could mean someone from another country, state, or even planet. Aliens
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An alien registration number is given to immigrants who come to America to live for a while before becoming naturalized citizens. The number is a way of keeping a record of them.
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