washcloth vs flannel

washcloth and flannel both are nouns.

Word	Noun	Adjective	Verb	Adverb
washcloth	Yes	No	No	No
flannel	Yes	No	No	No

As nouns, washcloth and flannel are synonyms defined as:

washcloth and flannel: bath linen consisting of a piece of cloth used to wash the face and body

Other synonyms of washcloth include face cloth, washrag.

washcloth (noun)	flannel (noun)
bath linen consisting of a piece of cloth used to wash the face and body	a soft light woolen fabric; used for clothing
	bath linen consisting of a piece of cloth used to wash the face and body
	(usually in the plural) trousers made of flannel or gabardine or tweed or white cloth