1. Suffix
–ist =
Means one who

2. abolitionist
Someone who is against, or wants to abolish, slavery

3. antagonist Someone who is opposed to, or competes with someone else
This is usually the one who fights against the hero.

4. Someone who is the leading character, hero, or heroine
protagonist
Someone who is the leading character, hero, or heroine
of a play, movie, or story

5. Someone who studies human history
archeologist
Someone who studies human history

6. A doctor who studies X-rays
radiologist
A doctor who studies X-rays

7. Suffix
–ful=
means full of

8. harmful

9. beautiful

10. powerful

11. wasteful

12. thankful

13. prefix re-= back, again, against, behind
What re- words do we already know?

14. rearrange

15. recopy

16. retrace

17. reunite

18. refurbish

19. prefix extra-= outside; outside of; beyond
What extra- words do we already know?

20. extraordinary

21. extraterrestrial

22. extracurricular

23. extravagant

24. extraneous