Suffixes -eer, -ist, -ian, -or, and -er

1. engineer

2. dentist

3. librarian

4. director

5. customer

6. pioneer

7. counselor

8. tourist

9. scientist

10. visitor

11. investigator

12. senator

13. astronomer

14. character

15. refrigerator

16. guardian

17. commander

18. physician

19. politician

20. leader

Extra Credit Words: a.  b.