chuck wagon vs wagon

chuck wagon and wagon both are nouns.

Word	Noun	Adjective	Verb	Adverb
chuck wagon	Yes	No	No	No
wagon	Yes	No	No	No

As nouns, wagon is a hypernym of chuck wagon; that is, wagon is a word with a broader meaning than chuck wagon:

chuck wagon: a wagon equipped with a cookstove and provisions (for cowboys)
wagon: any of various kinds of wheeled vehicles drawn by an animal or a tractor

Other hypernyms of chuck wagon include waggon.

chuck wagon (noun)	wagon (noun)
a wagon equipped with a cookstove and provisions (for cowboys)	any of various kinds of wheeled vehicles drawn by an animal or a tractor
	a car that has a long body and rear door with space behind rear seat
	van used by police to transport prisoners
	a child's four-wheeled toy cart sometimes used for coasting