Bi- and Uni- List Crossword

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Across
  1. 4. Synonym to Biyearly
  2. 7. One sided
  3. 8. One of a kind
  4. 9. Speaking two languages
  5. 10. Eyeglasses with two lenses
  6. 11. One-footed
Down
  1. 1. A tricky one-wheeled vehicle
  2. 2. Something that comes in two times a month
  3. 3. A mythical creature with one horn
  4. 5. Think of "Ginx!"
  5. 6. One-celled organism
  6. 9. Two-pointed Tooth