Dixie cup vs paper cup

Dixie cup and paper cup both are nouns.

Word	Noun	Adjective	Verb	Adverb
Dixie cup	Yes	No	No	No
paper cup	Yes	No	No	No

As nouns, Dixie cup and paper cup are synonyms defined as:

Dixie cup and paper cup: a disposable cup made of paper; for holding drinks

Dixie cup (noun)	paper cup (noun)
a disposable cup made of paper; for holding drinks	a disposable cup made of paper; for holding drinks