Class 7/8 Vocabulary Challenge

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Across
  1. 3. Having to do with, or causing, death
  2. 7. Confused, losing one's sense of direction
  3. 9. Spoken with one voice, all in agreement
  4. 10. Assume someone has done a wrong but without proof
  5. 11. A figure with many sides
  6. 12. Prefix meaning three
  7. 13. Prefix meaning one or singular
  8. 17. Naturally occurring within a certain environment
  9. 18. To feel sorry for the wrong one has done
  10. 19. Acting in a manner that puts others safety at risk
  11. 21. Having to do with poo
  12. 22. Enormous, gigantic
Down
  1. 1. Hidden
  2. 2. To hit back or strike back
  3. 4. Prefix meaning two
  4. 5. Boring; Going on and on without variation
  5. 6. Break down or take something apart
  6. 7. Become numbed or unable to feel; insensitive to
  7. 8. Prefix meaning four
  8. 11. To take action before action is taken against you
  9. 14. Related to an unborn baby
  10. 15. A heated argument or quarrel
  11. 16. A three-legged stool
  12. 18. Competitors
  13. 20. Speak out against something wrong; strongly condemn