Enrich your vocabulay!

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Across
  1. 1. filthy
  2. 2. ticket/certificate/document giving right to leave DA
  3. 4. easily seen; obvious; attracting attention
  4. 8. serious, somber, grave
  5. 9. something violently, cruel or savagely fierce
  6. 10. false
  7. 11. inducing sleep
  8. 12. a business owner
  9. 16. The act or an instance of resigning
  10. 18. to pass into or through every part
Down
  1. 1. not genuine, false
  2. 3. bedroom at a school
  3. 4. partners
  4. 5. appoint; assign, assigned
  5. 6. intense
  6. 7. over the top with emotions
  7. 13. maze-like
  8. 14. quiet, peaceful
  9. 15. (of birds) not yet having developed feathers to fly
  10. 17. front of a building