chicken vs hen

chicken and hen both are nouns.

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

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

chicken: a domestic fowl bred for flesh or eggs; believed to have been developed from the red jungle fowl
hen: adult female chicken

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

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

chicken (noun)	hen (noun)
a domestic fowl bred for flesh or eggs; believed to have been developed from the red jungle fowl	adult female chicken
a foolhardy competition; a dangerous activity that is continued until one competitor becomes afraid and stops	adult female bird
the flesh of a chicken used for food	female of certain aquatic animals e.g. octopus or lobster
a person who lacks confidence, is irresolute and wishy-washy	flesh of an older chicken suitable for stewing

chicken (adjective)	hen (adjective)
easily frightened