M A T T I F R A N K S
  1. Mat
  2. Fat
  3. Nat
  4. Sat
  5. Rank(s)
  6. Tank(s)
  7. Rant(s)
  8. Sank
  9. Fit(s)
  10. Mitt(s)
  11. Trim(s)
  12. Tram(s)
  13. Rift(s)
  14. Fair(s)
  15. Ran
  16. Skin
  17. Iran
  18. Skat
  19. Tit(s)
  20. Mantis
    Suggested by @HisDudeness