prairie schooner vs covered wagon

prairie schooner and covered wagon both are nouns.

Word	Noun	Adjective	Verb	Adverb
prairie schooner	Yes	No	No	No
covered wagon	Yes	No	No	No

As nouns, prairie schooner and covered wagon are synonyms defined as:

prairie schooner and covered wagon: a large wagon with broad wheels and an arched canvas top; used by the United States pioneers to cross the prairies in the 19th century

Other synonyms of prairie schooner include Conestoga, Conestoga wagon, prairie wagon.

prairie schooner (noun)	covered wagon (noun)
a large wagon with broad wheels and an arched canvas top; used by the United States pioneers to cross the prairies in the 19th century	a large wagon with broad wheels and an arched canvas top; used by the United States pioneers to cross the prairies in the 19th century