Question

What is an illegal alien?​

Answer 1

An illegal immigrant; someone who has entered and is living within the boundries of the country without the proper approval or papers.

Answer 2

An illegal foreigner

Step-by-step explanation:

According to the law or a constitution of a country, an illegal alien is a foreign national in a state where he/she has no legal rights to stay. They usually enter the country illegally through the migration.