Irregular Nouns

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Across
  1. 4. man
  2. 5. person
  3. 6. deer
  4. 7. sheep
  5. 9. ox
  6. 10. foot
  7. 11. fish
  8. 12. woman
  9. 13. louse
Down
  1. 1. child
  2. 2. tooth
  3. 3. fireman
  4. 4. mouse
  5. 8. policeman