| Term | Definition |
| migrate | to move from one place to another |
| immigration | when people move into a country that is not their home country |
| resident | Someone who lives and works somewhere, but is not always a citizen |
| expatriate | A person who lives and works away from his or her home country |
| work permit | Permission for a foreigner to legally work and earn money in a country |
| tourist | a person who visits a country but does not intend to work there |
| citizenship | To be an official, passport holding resident of a country with all rights |
| documented | A person with the correct papers and visas to be in a country legally |
| Undocumented | a person without correct papers and visas who is illegally in a country |
| Push factor | some event or force that makes people want to leave a country |
| Pull factor | some event or force that attracts people to go to a country |
| guest worker | people who are legally allowed into a foreign country to do jobs |
| asylum | to get official protection or safety away from a threatening situation |
| asylum seeker | a person who seeks official protection or safety away from a threatening situation |
| economic refugee | a person who leaves a bad economic situation looking for a better chance to make a living |
| refugee | a person who leaves a bad situation to go to another country |
| freedom of movement | The right of people with correct documents to travel within their own country and to travel to other countries |
| brain drain | when a country's best educated people leave to find a better situation |
| deportation | When a government forces a person to leave the country or an area inside the country |
| ethnic cleansing | forcing people of certain ethnic, racial, or religious groups to leave an area |
| exile | when a government forces an individual who is a legal citizen or resident to leave the country |
| population transfer | when governments force a large group of people to move from one region to another |