| A | B |
| U-boat | German submarine |
| machine gun | a rapid fire gun that could kill many |
| hand grenade | explosive weapon that can be thrown for short distances |
| airplane | usually a bi-plane used for reconnaisance |
| trench warfare | trying to get from trench to trench without getting killed |
| AEF | American troops in WWI |
| Hun | American term for the Germans in WWI |
| convoy | grouping ship to protect shipments |
| war bonds | sold to raise money for the war |
| Liberty sandwich | hamburger |
| meatless Monday | Hoover's voluntary plan to avoid rationing |
| sedition | speech or writing against the US govt to cause rebellion |