uni

1234567
Across
  1. 2. (adj) moving in only one direction
  2. 3. (n) a one-wheeled vehicle on which the rider sits and pedals
  3. 5. (n) a one-piece leotard and tights combination
  4. 6. (adj) having only one cell
  5. 7. (n) one group
Down
  1. 1. (v) to join together into one group
  2. 2. (n) an instance of saying the same words or sounds at the
  3. 4. time; in group that sounds like one
  4. 6. (adj) one of a kind; unusual or rare