inn vs khan

inn and khan both are nouns.

Word	Noun	Adjective	Verb	Adverb
inn	Yes	No	No	No
khan	Yes	No	No	No

As nouns, khan is a hyponym of inn; that is, khan is a word with a more specific, narrower meaning than inn:

inn: a hotel providing overnight lodging for travelers
khan: an inn in some eastern countries with a large courtyard that provides accommodation for caravans

Other hyponyms of inn include caravan inn, caravansary, caravanserai, imaret, post house, posthouse, roadhouse.

inn (noun)	khan (noun)
a hotel providing overnight lodging for travelers	an inn in some eastern countries with a large courtyard that provides accommodation for caravans
	a title given to rulers or other important people in Asian countries