woollen vs cloth

woollen and cloth both are nouns.

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

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

woollen: a fabric made from the hair of sheep
cloth: artifact made by weaving or felting or knitting or crocheting natural or synthetic fibers

Other hypernyms of woollen include fabric, material, textile.

woollen (noun)	cloth (noun)
a fabric made from the hair of sheep	artifact made by weaving or felting or knitting or crocheting natural or synthetic fibers

woollen (adjective)	cloth (adjective)
of or related to or made of wool