Vocabulary

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Across
  1. 4. consisting of four parts or elements
  2. 8. one-thousandth of a second
  3. 10. a half of a circle or of its circumference
Down
  1. 1. operating or moving in one direction only; not changing direction
  2. 2. an anniversary of a thousand years
  3. 3. using two legs for walking
  4. 5. make or become united, uniform, or whole
  5. 6. occurring twice a year; half-yearly
  6. 7. divide into two parts
  7. 9. an athletic event comprising five different events for each competitor