big dipper vs chute-the-chute

big dipper and chute-the-chute both are nouns.

Word	Noun	Adjective	Verb	Adverb
big dipper	Yes	No	No	No
chute-the-chute	Yes	No	No	No

As nouns, big dipper and chute-the-chute are synonyms defined as:

big dipper and chute-the-chute: elevated railway in an amusement park (usually with sharp curves and steep inclines)

Other synonyms of big dipper include roller coaster.

big dipper (noun)	chute-the-chute (noun)
elevated railway in an amusement park (usually with sharp curves and steep inclines)	elevated railway in an amusement park (usually with sharp curves and steep inclines)