icebox vs white goods

icebox and white goods both are nouns.

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

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

icebox: white goods in which food can be stored at low temperatures
white goods: large electrical home appliances (refrigerators or washing machines etc.) that are typically finished in white enamel

icebox (noun)	white goods (noun)
white goods in which food can be stored at low temperatures	drygoods for household use that are typically made of white cloth
	large electrical home appliances (refrigerators or washing machines etc.) that are typically finished in white enamel