| Term | Definition |
| Segregation | term generally applied to separation of races |
| Jim Crow laws | The "separate but equal" segregation laws state and local laws enacted in the Southern and border states of the United States and enforced between 1876 and 1965 |
| Plessy v. Ferguson | the 1896 Supreme Court case that gave the federal government stamp of approval to legalized segregation |
| "separate but equal" | phrase from the Supreme Court's Plessy decision used to justify legalized segregation |
| Brown v. Board of Education of Topeka | the famous 1954 Supreme Court case that reversed the Plessy decision and ended legalized segregation |
| de jure segregation | segregation by law |
| de facto segregation | segregation in fact-- segregation as a reality of life |
| Affirmative Action | programs intended to make up for past discrimination by helping minority groups and women gain access to jobs and opportunities |
| reverse discrimination | claim made by many white or male Americans that Affirmative Action is effectively discrimination against them |