fryer vs deep fat fryer

fryer and deep fat fryer both are nouns.

Word	Noun	Adjective	Verb	Adverb
fryer	Yes	No	No	No
deep fat fryer	Yes	No	No	No

As nouns, fryer and deep fat fryer are synonyms defined as:

fryer and deep fat fryer: A kitchen appliance for deep frying; its size depends on intended use.

Other synonyms of fryer include deep fryer, frier, fryolator.

fryer (noun)	deep fat fryer (noun)
A kitchen appliance for deep frying; its size depends on intended use.	A kitchen appliance for deep frying; its size depends on intended use.
flesh of a medium-sized young chicken suitable for frying