Sub- Super- Sur-

12345678910111213141516
Across
  1. 3. a passage way under the ground; an electric underground railroad
  2. 5. a person who stands over or above someone in rank; a manager in charge of someone else
  3. 7. something that is beyond what is expected
  4. 8. above average in quality; excellent
  5. 11. to put under someone else's control
  6. 12. a quantity or amount over and above what is actually needed; extra
  7. 13. to put under water
  8. 14. to bring under control
  9. 15. an amount of money (charge) over and above what is already being paid
  10. 16. to water something from under the ground
Down
  1. 1. a watercraft that stays under water
  2. 2. not fully aware; occurring below your level of thinking and awareness
  3. 3. a person with the highest power, power above everyone else's
  4. 4. under the skin
  5. 5. an extra tax beyond the normal tax
  6. 6. a person who is under someone in rank or importance
  7. 7. to lay or place something over something else
  8. 9. splendid; excellent; beyond the expected
  9. 10. below the freezing part
  10. 14. beyond what is real or believable; bizarre