| Term | Definition |
| Cultural Diffusion | the spreading, mixing, and changing of cultures. |
| Immigrants | people who settle in a country they wern't born in. |
| Ellis Island | immigration processing center that opened in New York harbor 1892. |
| Undocumented Workers | immigrants who come into a country without the governments permission |
| Migration | large scale permanent movements of people. |
| Refugees | people who flee their country without government permission. |
| Urbanization | the movement to cities, growth of cities. |
| Urban Area | cities and towns |
| Rural Area | "in the country" often farms. |
| Push Factors | things that make you move for your survival. |
| Pull Factors | opportunities for a better life that encourage you to move. |