To, Too, and Two ...

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Across
  1. 5. wretchedly/extremely unhappy
  2. 6. in good spirits
  3. 7. a number
  4. 8. used for expressing direction/motion
  5. 9. full of joy
Down
  1. 1. a sudden wave of keen emotion/excitement
  2. 2. full of happiness
  3. 3. highly pleasing
  4. 4. mournful; sad
  5. 8. in addition; also; as well