What is Money?

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Across
  1. 2. to use (money) to pay for something.
  2. 3. the activity of making, buying, or selling goods in exchange for money.
  3. 5. to get money for work that you have done.
  4. 10. the making of a gift especially to a charity or public institution.
  5. 11. to exchange something for money.
Down
  1. 1. to keep (something) from being lost or wasted.
  2. 2. a building or room where things are sold.
  3. 4. to have or use something with others.
  4. 6. something generally accepted as a medium of exchange, a measure of value, or a means of payment.
  5. 7. to give money for goods or services.
  6. 8. a coin bank often in the shape of a pig.
  7. 9. a small job that is done regularly.