fridge vs freezer

fridge and freezer both are nouns.

Word	Noun	Adjective	Verb	Adverb
fridge	Yes	No	No	No
freezer	Yes	No	No	No

As nouns, freezer is a hyponym of fridge; that is, freezer is a word with a more specific, narrower meaning than fridge:

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

Other hyponyms of fridge include deep-freeze, deep freezer, Deepfreeze, ice machine.

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