dukedom (n.)
- ally
- archduchy
- baronetcy
- barony
- chieftaincy
- city-state
- colony
- commonweal
- commonwealth
- country
- county
- domain
- dominion
- duchy
- earldom
- empire
- kingdom
- kingship
- knighthood
- ladyship
- land
- lordship
- mandant
- mandate
- mandatory
- nation
- nationality
- polis
- polity
- possession
- power
- princedom
- principality
- protectorate
- province
- realm
- republic
- satellite
- seigniory
- settlement
- state
- sultanate
- superpower
- territory
- viscountcy
- viscounty
My library
Was dukedom large enough.