nourishment vs milk

nourishment and milk both are nouns.

Word	Noun	Adjective	Verb	Adverb
nourishment	Yes	No	No	No
milk	Yes	No	Yes	No

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

nourishment (noun)	milk (noun)
the act of nourishing	produced by mammary glands of female mammals for feeding their young
a source of materials to nourish the body	a white nutritious liquid secreted by mammals and used as food by human beings
	any of several nutritive milklike liquids

nourishment (verb)	milk (verb)
	take milk from female mammals
	add milk to
	exploit as much as possible