diaper vs cloth

diaper and cloth both are nouns.

Word	Noun	Adjective	Verb	Adverb
diaper	Yes	No	No	No
cloth	Yes	No	No	No

As nouns, cloth is a hypernym of diaper; that is, cloth is a word with a broader meaning than diaper:

diaper: a fabric (usually cotton or linen) with a distinctive woven pattern of small repeated figures
cloth: artifact made by weaving or felting or knitting or crocheting natural or synthetic fibers

Other hypernyms of diaper include fabric, material, textile.

diaper (noun)	cloth (noun)
garment consisting of a folded cloth drawn up between the legs and fastened at the waist; worn by infants to catch excrement	artifact made by weaving or felting or knitting or crocheting natural or synthetic fibers
a fabric (usually cotton or linen) with a distinctive woven pattern of small repeated figures