white goods vs linen

white goods and linen both are nouns.

Word	Noun	Adjective	Verb	Adverb
white goods	Yes	No	No	No
linen	Yes	No	No	No

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

white goods: drygoods for household use that are typically made of white cloth
linen: white goods or clothing made with linen cloth

Other hyponyms of white goods include ironing, laundry, wash, washables, washing.

white goods (noun)	linen (noun)
drygoods for household use that are typically made of white cloth	white goods or clothing made with linen cloth
large electrical home appliances (refrigerators or washing machines etc.) that are typically finished in white enamel	a fabric woven with fibers from the flax plant
	a high-quality paper made of linen fibers or with a linen finish