Spelling 22

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Across
  1. 1. occurring twice a year.
  2. 4. All existing matter and space considered as a whole
  3. 7. bicycle with one wheel
  4. 9. a continuing sound
  5. 10. one of three children or animals born at the same birth
  6. 11. an optical instrument with a lens for each eye, used for viewing distant objects.
  7. 12. simultaneous performance of action or utterance of speech.
  8. 15. being the only one of its kind; unlike anything else.
  9. 17. The distinctive clothing worn by members of the same organization or body or by children attending certain schools.
  10. 18. a railroad in which the track consists of a single rail, typically elevated, with the trains suspended from it or balancing on it.
Down
  1. 1. the two-hundredth anniversary of a significant event.
  2. 2. A * is a polygon with three edges and three vertices. It is one of the basic shapes in geometry. A * with vertices A, B, and C is denoted \* ABC. In Euclidean geometry, any three points, when non-collinear, determine a unique * and simultaneously, a unique plane.
  3. 3. a three-legged stand for supporting a camera or other apparatus.
  4. 5. A large muscle in the upper arm
  5. 6. a mythical animal typically represented as a horse with a single straight horn projecting from its forehead.
  6. 8. (of an organization or group) obtain exclusive possession or control of (a trade, commodity, or service).
  7. 10. biycycle with three wheels
  8. 13. shaped like a triangle; having three sides and three corners.
  9. 14. the exclusive possession or control of the supply of or trade in a commodity or service.
  10. 16. duplicate