refrigerator vs icebox

refrigerator and icebox both are nouns.

Word	Noun	Adjective	Verb	Adverb
refrigerator	Yes	No	No	No
icebox	Yes	No	No	No

As nouns, refrigerator and icebox are synonyms defined as:

refrigerator and icebox: white goods in which food can be stored at low temperatures

refrigerator (noun)	icebox (noun)
white goods in which food can be stored at low temperatures	white goods in which food can be stored at low temperatures