serving vs breast

serving and breast both are nouns.

Word	Noun	Adjective	Verb	Adverb
serving	Yes	No	No	No
breast	Yes	No	Yes	No

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

serving (noun)	breast (noun)
the act of delivering a writ or summons upon someone	the part of an animal's body that corresponds to a person's chest
an individual quantity of food or drink taken as part of a meal	either of two soft fleshy milk-secreting glandular organs on the chest of a woman
	the front of the trunk from the neck to the abdomen
	meat carved from the breast of a fowl

serving (verb)	breast (verb)
	confront bodily
	reach the summit (of a mountain)
	meet at breast level