childhood vs boyhood

childhood and boyhood both are nouns.

Word	Noun	Adjective	Verb	Adverb
childhood	Yes	No	No	No
boyhood	Yes	No	No	No

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

Other hyponyms of childhood include girlhood, maidenhood, maidhood.

childhood (noun)	boyhood (noun)
the state of a child between infancy and adolescence	the childhood of a boy
the time of person's life when they are a child