frier vs deep fryer

frier and deep fryer both are nouns.

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

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

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

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

frier (noun)	deep 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