light

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Across
  1. 4. a stretch of open uncultivated upland
  2. 5. light from the sun
  3. 8. a journey made in an aircraft or in space
  4. 9. the light of the moon
Down
  1. 1. dawn
  2. 2. please greatly
  3. 3. 12 o'clock in the day; midday
  4. 6. the natural form of energy that makes things visible
  5. 7. the natural satellite of the earth