Mono - Multi

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Across
  1. 3. a long speech done by one person
  2. 5. a large number
  3. 8. more that one dimension
  4. 11. a large number/variety
  5. 13. a mortal fear of being alone
  6. 14. a single lens used to correct vision
  7. 16. of or pertaining to more than one date
  8. 17. a way of talking without raising or lowering one's tone of voice
Down
  1. 1. a train that operates on only one rail
  2. 2. an image using only one color, usually in black and white
  3. 4. relating to many different cultures
  4. 6. having many parts, elements, forms
  5. 7. to select multiple items
  6. 9. large massive/carved from one piece of stone
  7. 10. having many aspects
  8. 12. to take over and control someone/something completely
  9. 15. state or practice of being married to only one spouse or person at a time