Extra credit

123456789
Across
  1. 3. - To grow or develop well or successfully. (10 letters)
  2. 4. - The ruler of an empire. (7 letters)
  3. 5. - Without competition, unmatched. (9 letters)
  4. 7. - Accepted or acknowledged by everyone as true. (10 letters)
  5. 9. - Something you achieve through effort or skill. (12 letters)
Down
  1. 1. - The act of following in order, or the series of people or events following each other. (10 letters)
  2. 2. - A change or improvement, often referring to a religious movement. (11 letters)
  3. 6. - Very large, significant, or important. (10 letters)
  4. 8. - A society with a high level of culture, science, and government. (12 letters)