rag gourd vs loufah sponge

rag gourd and loufah sponge both are nouns.

Word	Noun	Adjective	Verb	Adverb
rag gourd	Yes	No	No	No
loufah sponge	Yes	No	No	No

rag gourd (noun)	loufah sponge (noun)
any of several tropical annual climbers having large yellow flowers and edible young fruits; grown commercially for the mature fruit's dried fibrous interior that is used as a sponge	the dried fibrous part of the fruit of a plant of the genus Luffa; used as a washing sponge or strainer