loofah vs loufah sponge

loofah and loufah sponge both are nouns.

Word	Noun	Adjective	Verb	Adverb
loofah	Yes	No	No	No
loufah sponge	Yes	No	No	No

As nouns, loofah and loufah sponge are synonyms defined as:

loofah and loufah sponge: the dried fibrous part of the fruit of a plant of the genus Luffa; used as a washing sponge or strainer

Other synonyms of loofah include loofa, luffa.

loofah (noun)	loufah sponge (noun)
the loofah climber that has cylindrical fruit	the dried fibrous part of the fruit of a plant of the genus Luffa; used as a washing sponge or strainer
the dried fibrous part of the fruit of a plant of the genus Luffa; used as a washing sponge or strainer