Millions

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Across
  1. 4. sort of like September
  2. 5. pretty easy, the 3rd "illion"
  3. 6. sort of like NOVEMber
  4. 8. sort of like the quantum realm but with an "I"
  5. 9. pretty easy, the 2nd "illion"
  6. 10. it spells sort of like "octopus"
Down
  1. 1. like a quad bike, it has quad in it!
  2. 2. the other term for gender
  3. 3. pretty easy, the first "illion"
  4. 7. the highest number besides infinity