baby farmer vs keeper

baby farmer and keeper both are nouns.

Word	Noun	Adjective	Verb	Adverb
baby farmer	Yes	No	No	No
keeper	Yes	No	No	No

As nouns, keeper is a hypernym of baby farmer; that is, keeper is a word with a broader meaning than baby farmer:

baby farmer: someone who runs an establishment that houses and cares for babies for a fee
keeper: someone in charge of other people

baby farmer (noun)	keeper (noun)
someone who runs an establishment that houses and cares for babies for a fee	one having charge of buildings or grounds or animals
	someone in charge of other people