biddy vs pullet

biddy and pullet both are nouns.

Word	Noun	Adjective	Verb	Adverb
biddy	Yes	No	No	No
pullet	Yes	No	No	No

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

Other hyponyms of biddy include cackler, brood hen, broody, broody hen, setting hen, sitter, mother hen, layer.

biddy (noun)	pullet (noun)
young bird especially of domestic fowl	young hen usually less than a year old
adult female chicken	flesh of a medium-sized young chicken suitable for frying