| A | B |
|---|
| isthmus | narrow strip of land connecting two big pieces of land |
| alliance | agreement to work together and defend each other |
| trench warfare | fighting from long ditches |
| armistice | agreement to stop fighting |
| assembly line | line of workers building piece by piece |
| division of labor | worker performs specific part of large task |
| credit | buy today, pay later |
| stock market | buy & sell shares of companies |
| unemployment | number of people without jobs |
| depression | businesses fail, high unemployment |
