chicken vs fryer

chicken and fryer both are nouns.

Word	Noun	Adjective	Verb	Adverb
chicken	Yes	Yes	No	No
fryer	Yes	No	No	No

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

Other hyponyms of chicken include broiler, capon, frier, pullet, roaster, spatchcock, hen.

chicken (noun)	fryer (noun)
a domestic fowl bred for flesh or eggs; believed to have been developed from the red jungle fowl	A kitchen appliance for deep frying; its size depends on intended use.
a foolhardy competition; a dangerous activity that is continued until one competitor becomes afraid and stops	flesh of a medium-sized young chicken suitable for frying
the flesh of a chicken used for food
a person who lacks confidence, is irresolute and wishy-washy

chicken (adjective)	fryer (adjective)
easily frightened