Nouns Regular / Irregular

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Across
  1. 1. Life
  2. 3. Fish
  3. 4. Cactus
  4. 6. Machine
  5. 9. Match
  6. 10. bases
  7. 13. transistor
  8. 16. person
  9. 17. Diagnosis
  10. 18. resistance
Down
  1. 2. Squid
  2. 3. Fungus
  3. 4. Country
  4. 5. Calf
  5. 7. engine
  6. 8. Woman
  7. 11. Moose
  8. 12. Bike
  9. 14. robot
  10. 15. Hero