breast vs attain

breast is a noun but attain is not a noun.

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

As verbs, attain is a hypernym of breast; that is, attain is a word with a broader meaning than breast:

Other hypernyms of breast include arrive at, gain, hit, make, reach.

breast (noun)	attain (noun)
the part of an animal's body that corresponds to a person's chest
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

breast (verb)	attain (verb)
confront bodily	reach a point in time, or a certain state or level
reach the summit (of a mountain)	reach a destination, either real or abstract
meet at breast level	find unexpectedly
	to gain with effort