Number Prefixes

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Across
  1. 2. the only one of its kind, extraordinary
  2. 4. at the same time and in the same way
  3. 5. mathematics of sines, cosines, and tangents
  4. 6. make something three times larger
  5. 10. three people or things
  6. 12. state of being joined as a whole in harmony
  7. 14. space including everything that exists
  8. 15. a geometric shape with three sides
  9. 16. half of a round figure
  10. 17. make or become united or whole
  11. 19. muscles in the upper arm used for lifting
  12. 20. the round in a game before the last one
  13. 22. once every two months, or twice a month
  14. 23. occurring twice a year
Down
  1. 1. device for making distant objects look nearer
  2. 3. three-legged stand or base, often for a camera
  3. 4. high level school offering graduate degrees
  4. 7. vehicle with two wheels that is pedaled
  5. 8. group of three; composition for three musicians
  6. 9. stand that holds hot dishes off a table
  7. 11. punctuation mark ; used to link two clauses
  8. 13. number equal to one thousand millions
  9. 16. less valuable gems
  10. 18. something's two hundredth anniversary
  11. 21. able to speak two languages fluently