New word revision

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Across
  1. 4. a person whose job is operating a machine
  2. 6. the state of having knowledge or understanding
  3. 8. a person who introduces new methods, ideas, or products.
  4. 9. a person who sets up a business or businesses, taking on financial risks in the hope of profit.
Down
  1. 1. to persuade someone or make someone certain
  2. 2. identify the nature of (an illness or other problem) by examination of the symptoms.
  3. 3. to experience difficulty and make a very great effort in order to do something
  4. 5. great attention to and interest in something
  5. 7. very clever or ingenious