1. challenge
  2. challenge oneself
  3. change
  4. change oneself
  5. channel
  6. channel oneself
  7. chant
  8. chant oneself
  9. char
  10. char oneself
  11. characterize
  12. characterize oneself
  13. charge
  14. charge oneself
  15. charm
  16. charm oneself
  17. chart
  18. chart oneself
  19. chase
  20. chase oneself
  21. chat
  22. chat oneself
  23. chatter