28
1. obscenity 2. trapezium 3. campanologist 4. plugging 5. democracy 6. landau 7. charioteer 8. genteelly 9. inclemency 10. entablature 11. entailment 12. frieze 13. certificate 14. imaginary 15. demoiselle 16. gardener 17. bourse 18. alibi 19. jaundice 20. enterprise 21. nectarine 22. frigate 23. philter 24. camphor 25. really 26. realize 27. suppurate 28. demoniacal 29. garget 30. impugn