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