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