Singular and Plural are the Same

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Across
  1. 4. pigs
  2. 6. protective glasses
  3. 7. nightwear
  4. 9. animals that can pull heavy loads
  5. 10. planes
  6. 11. glasses
  7. 12. used for gripping things
  8. 14. group of animals
  9. 17. all men wear theres
  10. 19. type of fish
  11. 21. used for holding things
  12. 22. they have fleece
  13. 23. small shellfish
Down
  1. 1. a cricket term
  2. 2. used for twisting and turning tough wire
  3. 3. distance glasses
  4. 5. used for cutting sheep's wool
  5. 8. physical activity
  6. 11. used for cutting paper
  7. 13. animal that lives in the forest
  8. 15. used for weighing
  9. 16. these fish like cold water
  10. 18. patters
  11. 20. animal that lives in Canada