Spelling star challenge

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Across
  1. 2. An educational institution.
  2. 4. The sounds produced by singers or musical instruments.
  3. 6. A ball-and-socket joint between the head of the humerus and a cavity of the scapula.
  4. 8. Yard consisting of an outdoor area for children's play.
  5. 11. A thoroughfare (usually containing sidewalks) that is lined with buildings.
  6. 13. an upholstered seat for more than one person.
  7. 16. Large hard-shelled oval nut with a fibrous husk containing thick white meat surrounding a central cavity filled (when fresh) with fluid or milk.
  8. 17. A thin cylindrical pointed writing implement.
  9. 18. The organ of sight.
  10. 19. Frozen dessert containing cream and sugar and flavoring.
Down
  1. 1. A small rodent with a pointy face, rounded ears, and a long tail.
  2. 3. Is an electronic device that you use for conversations over great distances.
  3. 5. Is a machine for performing calculations automatically?
  4. 7. Cud-chewing mammal used as a draft or saddle animal in desert regions.
  5. 9. Animals aving long ears and short tails; some domesticated and raised for pets.
  6. 10. An aircraft without wings that obtains its lift from the rotation of overhead blades.
  7. 11. Any implement that is used to make something (an edge or a point) sharper.
  8. 12. A land mass that projects well above its surroundings; higher than a hill.
  9. 14. A domesticated bird that is raised on farms for meat or eggs.
  10. 15. A flattened rigid plate forming part of the body covering of many animals.