Prefix Uni-

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Across
  1. 2. (v) to join together into one group
  2. 3. (n) a horse-like fabled animal that has one horn growing out of the middle of its forehead
  3. 6. (adj) one sided
  4. 7. (n) a one-wheeled vehicle on which the rider sits and pedals
  5. 8. (n) a one-piece leotard and tights combination
  6. 9. (adj) having only one cell
Down
  1. 1. (n) an instance of saying the same words or sounds at the same time; a group that sounds like one
  2. 2. (adj) having or relating to a single axis
  3. 3. (adj) moving in only one direction
  4. 4. (adj) one of a kind; unusual or rare
  5. 5. (adj) of one color
  6. 10. (n) one group