swan's down vs cloth

swan's down and cloth both are nouns.

Word	Noun	Adjective	Verb	Adverb
swan's down	Yes	No	No	No
cloth	Yes	No	No	No

As nouns, cloth is a hypernym of swan's down; that is, cloth is a word with a broader meaning than swan's down:

swan's down: soft woolen fabric used especially for baby clothes
cloth: artifact made by weaving or felting or knitting or crocheting natural or synthetic fibers

Other hypernyms of swan's down include fabric, material, textile.

swan's down (noun)	cloth (noun)
down of the swan	artifact made by weaving or felting or knitting or crocheting natural or synthetic fibers
soft woolen fabric used especially for baby clothes