breast vs serving

breast and serving both are nouns.

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

As nouns, serving is a hypernym of breast; that is, serving is a word with a broader meaning than breast:

Other hypernyms of breast include helping, portion.

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

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