milk vs alimentation

milk and alimentation both are nouns.

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

As nouns, alimentation is a hypernym of milk; that is, alimentation is a word with a broader meaning than milk:

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

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