Charles's Wain vs Wagon

Charles's Wain and Wagon both are nouns.

Word	Noun	Adjective	Verb	Adverb
Charles's Wain	Yes	No	No	No
Wagon	Yes	No	No	No

As nouns, Charles's Wain and Wagon are synonyms defined as:

Charles's Wain and Wagon: a group of seven bright stars in the constellation Ursa Major

Other synonyms of Charles's Wain include Big Dipper, Dipper, Plough, Wain.

Charles's Wain (noun)	Wagon (noun)
a group of seven bright stars in the constellation Ursa Major	a group of seven bright stars in the constellation Ursa Major