deep-freeze vs fridge

deep-freeze and fridge both are nouns.

Word	Noun	Adjective	Verb	Adverb
deep-freeze	Yes	No	No	No
fridge	Yes	No	No	No

As nouns, fridge is a hypernym of deep-freeze; that is, fridge is a word with a broader meaning than deep-freeze:

deep-freeze: electric refrigerator (trade name Deepfreeze) in which food is frozen and stored for long periods of time
fridge: a refrigerator in which the coolant is pumped around by an electric motor

Other hypernyms of deep-freeze include electric refrigerator.

deep-freeze (noun)	fridge (noun)
electric refrigerator (trade name Deepfreeze) in which food is frozen and stored for long periods of time	a refrigerator in which the coolant is pumped around by an electric motor