loofa vs loofah

loofa and loofah both are nouns.

Word	Noun	Adjective	Verb	Adverb
loofa	Yes	No	No	No
loofah	Yes	No	No	No

As nouns, loofa and loofah are synonyms defined as:

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

Other synonyms of loofa include loufah sponge, luffa.

loofa (noun)	loofah (noun)
the dried fibrous part of the fruit of a plant of the genus Luffa; used as a washing sponge or strainer	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