1. soak
  2. soak oneself
  3. soar
  4. soar oneself
  5. socialize
  6. socialize oneself
  7. sod
  8. sod oneself
  9. soften
  10. soften oneself
  11. solicit
  12. solicit oneself
  13. solidify
  14. solidify oneself
  15. solo
  16. solo oneself
  17. solve
  18. solve oneself
  19. soothe
  20. soothe oneself
  21. sort
  22. sort oneself
  23. sortie
  24. sortie oneself
  25. sound
  26. sound oneself
  27. sow
  28. sow oneself