Best Crossword Ever!

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Across
  1. 2. sword
  2. 6. spherical body
  3. 8. well beloved Mexican dish
  4. 10. not
Down
  1. 1. "to ____!"
  2. 3. sign of relation (Seneca)
  3. 4. swollen lymph nodes
  4. 5. best nation alive
  5. 7. word of greeting (Seneca)
  6. 8. technological marvel
  7. 9. anger