| A | B |
| Bolsheviks | a group of Russian radicals, led by Vladimir I. Lenin, who played a major role in the 1917 revolution in Russia |
| communism | a system of government in which there is no private property and there are no economic classes |
| Red Scare | widespread fear of communism |
| Palmer Raids | a series of government attacks on suspected radicals in the United States led by the U.S. attorney general, A. Mitchell Palmer |
| aliens | citizens of another country living in the United States |
| deportation | being sent back to on'e country of orgin |
| anarchists | radicals who believe in the destruction of government |
| Sacco & Vanzetti | In May 1920 two Italian immigrants arrested for armed robbery and murder. These men were anarchists |
| assembly line | a mass-production process in which a product moved forward through many work stations, where workers performed specific tasks |
| productivity | the amount of product made by a worker or machine |
| welfare capitalism | system in which companies provided fringe benefits to employees in an effort to promote worker satisfaction and loyalty |
| suburbs | smaller towns that are located outside a larger urban area |
| installment buying | paying for an iteam over a period of time with a series of small payments |
| credit | a system of borrowing money from banks to make purchases, and then paying it back later with interest |
| Warren G. Harding | An Ohio senator that ran in the 1920 presidential race. Coined the phrase "normalcy" |
| Teapot Dome Scandal | a federally owned piece of land in Wyoming; it was the center of a government scandal in 1921 when President Harding's Secretary of the Interior accepted bribes in return for allowing oil companies to drill for oil there in 1921 |
| reparations | payments designed to make up for the damage of something |
| arms race | a struggle in which competing nations build more and more weapons in an effort to avoid one nation gaining a clear advantage |
| Kellogg-Briand Pact | a treaty signed in 1928 that rejected war as a means to solving problems between countries |