| A | B |
|---|
| free enterprise | an economic system in which people are able to start and run their own businesses with little control by the government |
| transcontinental railroad | a railroad that would cross the continent, linking the Atlantic and Pacific coasts |
| entrepreneur | a person who sets up a new business, taking a chance on making or losing money |
| refinery | a factory where crude,or raw, oil is made into usuable products |
| time zone | a region in which a single time is used |
| assembly line | a system of mass production where items are put together as they move past a line of workers |
| aviation | air transportation |
| jazz | a kind of music that grew out of the African American musical heritage |
| strike | when workers stop working to get factory owners to listen to them |
| labor union | a group of workers who take action to improve their working conditions |
| federation | an organiztion made up of many related groups |
| regulate | way government controls businesses with laws |
| tenements | poorly built apartment houses |
| settlement house | a community center where people could learn new skills |
| skyscraper | a tall steel-frame building |
