| A | B |
| Free Enterprise | An economic system in which businesses have the freedom to offer many goods and services for sale |
| transcontinental railroad | a railroad that went across the continent, connecting the Atlantic and Pacific coasts. |
| capital resources | money to run a business |
| invest | to buy shares of a business in hopes of making a profit |
| stocks | shares bought to make money |
| corporations | businesses that sell shares of stock to investors |
| entrepreneur | a person who sets up a new business |
| consolidated | joined |
| refinery | a factory where crude oil is made into usable products |
| monopoly | almost complete control |
| time zone | a region in which a single time is used |
| human resources | workers |
| strike | to stop working |
| labor union | a group of workers who take action to protect their interests |
| federation | an organization made up of many members |
| regulate | control by law |
| prejudice | a feeling that some people have against others because of their race or culture |
| barrios | neighborhoods of people from Mexico |
| tenements | poorly built apartment houses |
| naturalization | the process through which one becomes a citizen |
| settlement house | a community center where people could learn new skills |
| skyscraper | a tall, steel-framed building |