| A | B |
| Arsenal | an arms factory |
| Compromise of 1850 | Henry Clay of KY's proposal to admit CA as a free state, issue of slavery in NM & UT settled by popular sovereignty |
| Confederate States of America | Government formed by seceding states |
| Fire-eater | One who strongly favored secession in the 1850s and was very vocal about it |
| Kansas-Nebraska Act | A law passed in 1854 by which Kansas and Nebraska were made territories and allowed to decide upon slavery issues themselves |
| Manifest Destiny | Idea that the United States was destined to control all of the land between the Atlantic and Pacific oceans |
| Martyr | One honored for giving his or her life for a specific cause |
| Popular sovereignty | The right of people living within an area to vote on specific issue, such as slavery |
| Wilmot Proviso | A proposal introduced in the US House of Representatives by David Wilmot of PA that would bar slavery from any territory gained from Mexico |
| Border states | slave states that did not secede from the Union in the early 1860s |
| Blockade | The use of naval forces to stop shipping |
| Ironclad | An armored vessel used during the Civil War |
| Conscription | The drafting of military service |
| Casualities | Those killed or wounded in battle |
| Emancipation Proclamation | The 1863 edict by which President Abraham Lincoln freed the slaves in the Confederate States |
| Barter | To trade one item for another |
| Refugee | One who flees fighting of a war |