bath linen vs washrag

bath linen and washrag both are nouns.

Word	Noun	Adjective	Verb	Adverb
bath linen	Yes	No	No	No
washrag	Yes	No	No	No

As nouns, washrag is a hyponym of bath linen; that is, washrag is a word with a more specific, narrower meaning than bath linen:

bath linen: linens for use in the bathroom
washrag: bath linen consisting of a piece of cloth used to wash the face and body

Other hyponyms of bath linen include bath mat, bath towel, face cloth, flannel, washcloth.

bath linen (noun)	washrag (noun)
linens for use in the bathroom	bath linen consisting of a piece of cloth used to wash the face and body