1. Monarch
2. Nobleman
3. Aristocrat
4. Peer
5. Lord
6. Count
7. Earl
8. Marquis
9. Viscount
10. Baron
11. King
12. Prince
13. Chief
14. Magnate
15. Potentate
16. Sovereign
17. Monarchist
18. Grandee
19. Noble
20. Patrician
21. Thane
22. Governor
23. Hereditary
24. Monarchial
25. Regent
26. Royal
27. Aristocracy
28. Liege
29. Aristocratic
30. Patrician

Finding synonyms for the word «duke» is an important task for anyone looking to expand their vocabulary. There are many words that can be used in place of «duke» to help create a more interesting and sophisticated writing style. We’ve compiled a list of the best ideas for synonyms for «duke» so you can easily find the perfect word for your needs. Whether you need a more formal word or a more colloquial one, our list has a wide selection of synonyms that range from monarch and nobleman to aristocrat and peer. Each of these words has a slightly different connotation that can be used to add depth and nuance to your writing. With so many other words for «duke» to choose from, you can easily find the perfect word to fit your needs.