Plural of...

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Across
  1. 4. toy
  2. 7. hero
  3. 10. octopus
  4. 12. knife
  5. 13. splash
  6. 15. family
  7. 17. person
Down
  1. 1. life
  2. 2. child
  3. 3. hobby
  4. 5. mosquito
  5. 6. piano
  6. 8. lunch
  7. 9. fox
  8. 11. salmon
  9. 14. leaf
  10. 16. floss