1. professor a member of the faculty at a college or university
  2. profound situated at or extending to great depth
  3. professorial relating to or characteristic of professors
  4. professorially in a professorial manner
  5. professed openly declared as such
  6. professional of or relating to or suitable as an occupation
  7. proficient having or showing knowledge and skill and aptitude
  8. professorship the position of professor
  9. provisory subject to a stipulated condition
  10. processor someone who processes things
  11. professionally in a professional manner
  12. proof spirit a mixture containing half alcohol by volume at 60 degrees Fahrenheit
  13. profession an occupation requiring special education
  14. perforate make a hole into or between, as for ease of separation
  15. proofread read for errors
  16. provision the activity of supplying something
  17. promissory relating to a verbal commitment by one person to another
  18. profess confess one's faith in, or allegiance to
  19. prophesier an authoritative person who divines the future
  20. pyrophosphate a salt or ester of pyrophosphoric acid