caravan inn vs caravanserai

caravan inn and caravanserai both are nouns.

Word	Noun	Adjective	Verb	Adverb
caravan inn	Yes	No	No	No
caravanserai	Yes	No	No	No

As nouns, caravan inn and caravanserai are synonyms defined as:

caravan inn and caravanserai: an inn in some eastern countries with a large courtyard that provides accommodation for caravans

Other synonyms of caravan inn include caravansary, khan.

caravan inn (noun)	caravanserai (noun)
an inn in some eastern countries with a large courtyard that provides accommodation for caravans	an inn in some eastern countries with a large courtyard that provides accommodation for caravans