| A | B |
| Immigrant | a person who moves from their native country to another country |
| Diversity | allowing various cultures to exist as one |
| Old Wave | immigration to the United States that took place from about 1820-1860; immigrants mainly from Northern and Western Europe |
| New Wave | immigration to the United States that took place from the late-1800's (1880s)- the early 1900's (1920's); immigrants mainly from Southern and Eastern Europe |
| Current/Modern Wave | immigration to the United States that took place from 1960-present |
| Trancontinental Railroad | a railroad that goes from the eastern part of the United States to the west; it was mainly built by Chinese immigrants |
| Ellis Island | an island in New York harbor that served as a processing center for European immigrants entering the United States |
| Angel Island | an island off the coast of San Francisco, California that served as a processing center for Asian immigrants entering into the United States |
| Greenhorn | someone who is viewed as being different |
| Nativist | a person who opposes open immigration |
| Ku Klux Klan | a nativist group who discriminates against other ethnic groups that are not white caucasians |
| Unlimited-Open-Unrestricted | allowing immigrants to enter America |
| Limited-Closed-Restricted | not allowing immigrants into America |
| Chinese Exclusion Act | restrictive legislation not allowing unskilled Chinese immigrants to enter America |
| Gentlemen's Agreement | an agreement with Japan only allowing skilled/professional Japanese into America |
| Quota Acts | restrictive legislation only allowing certain immigrants into America |
| Assimilation | a.k.a. the "melting pot" theory; different ethnic groups are expected to blend their culture in with the existing culture |
| Pluralism | a.k.a. the "salad bowl" theory; different ethnic groups are able to keep their culture |
| Xenophobia | the fear of foreigners |