ironing vs white goods

ironing and white goods both are nouns.

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

As nouns, white goods is a hypernym of ironing; that is, white goods is a word with a broader meaning than ironing:

ironing: garments (clothes or linens) that are to be (or have been) ironed
white goods: drygoods for household use that are typically made of white cloth

Other hypernyms of ironing include garment, household linen.

ironing (noun)	white goods (noun)
the work of using heat to smooth washed clothes in order to remove any wrinkles	drygoods for household use that are typically made of white cloth
garments (clothes or linens) that are to be (or have been) ironed	large electrical home appliances (refrigerators or washing machines etc.) that are typically finished in white enamel