wagon train vs caravan

wagon train and caravan both are nouns.

Word	Noun	Adjective	Verb	Adverb
wagon train	Yes	No	No	No
caravan	Yes	No	Yes	No

As nouns, wagon train and caravan are synonyms defined as:

wagon train and caravan: a procession (of wagons or mules or camels) traveling together in single file

Other synonyms of wagon train include train.

wagon train (noun)	caravan (noun)
a procession (of wagons or mules or camels) traveling together in single file	a camper equipped with living quarters
	a procession (of wagons or mules or camels) traveling together in single file

wagon train (verb)	caravan (verb)
	travel in a caravan