uni and bi cross word

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Across
  1. 1. able to speak two different languages
  2. 2. a two-footed creature
  3. 4. happening every two weeks
  4. 5. to join together into one group
  5. 7. happening every two years
  6. 8. one of a kind; unusual or rare
  7. 10. a horse-like fabled animal that has one horn growing out of the middle of its forehead
  8. 11. eyeglasses with lenses that have two different sections - for seeing close up and far away
Down
  1. 1. an airplane with two pairs of wings
  2. 3. a two-pointed tooth located in the side of the jaw
  3. 5. having only one cell
  4. 6. moving in only one direction
  5. 8. a one-wheeled vehicle on which the rider sits and pedals
  6. 9. an instance of saying the same words or sounds at the same time; a group that sounds like one
  7. 10. one group