Nouns

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Across
  1. 3. ten commandments/10 rules.
  2. 4. ten event athletic contest.
  3. 5. 10 years.
  4. 7. person in their nineties.
  5. 8. 10 sided polygon.
Down
  1. 1. one tenth of a metre.
  2. 2. a 9 sided polygon.
  3. 3. fractional number.
  4. 6. ten footed crustacean (e.g. lobster).