Obscure words

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Across
  1. 2. highest
  2. 3. a short high-pitched sound
  3. 4. alignment of celestial bodies
  4. 8. lowest
  5. 11. rumbling sound of a stomach
  6. 13. smell of rain
  7. 16. leave abruptly
  8. 18. counter-clockwise
  9. 19. askew
  10. 20. relating to twilight
Down
  1. 1. the facts of two things being seen or placed close together with contrasting effect
  2. 5. fear of failure
  3. 6. having shapely buttocks
  4. 7. day before yesterday
  5. 9. joy from other's misfortune
  6. 10. an element in the periodic table
  7. 12. confused
  8. 14. usually considered as the edge of the solar system
  9. 15. a fruit
  10. 17. a small adjustment that completes the overall look