divan vs privy council

divan and privy council both are nouns.

Word	Noun	Adjective	Verb	Adverb
divan	Yes	No	No	No
privy council	Yes	No	No	No

As nouns, privy council is a hypernym of divan; that is, privy council is a word with a broader meaning than divan:

divan: a Muslim council of state
privy council: an advisory council to a ruler (especially to the British Crown)

divan (noun)	privy council (noun)
a long backless sofa (usually with pillows against a wall)	an advisory council to a ruler (especially to the British Crown)
a Muslim council chamber or law court
a collection of Persian or Arabic poems (usually by one author)
a Muslim council of state