boob vs breach

boob and breach both are nouns.

Word	Noun	Adjective	Verb	Adverb
boob	Yes	No	Yes	No
breach	Yes	No	Yes	No

As verbs, breach is a hypernym of boob; that is, breach is a word with a broader meaning than boob:

Other hypernyms of boob include break, go against, infract, offend, transgress, violate.

boob (noun)	breach (noun)
either of two soft fleshy milk-secreting glandular organs on the chest of a woman	a failure to perform some promised act or obligation
an ignorant or foolish person	a personal or social separation (as between opposing factions)
	an opening (especially a gap in a dike or fortification)

boob (verb)	breach (verb)
commit a faux pas or a fault or make a serious mistake	make an opening or gap in
	act in disregard of laws, rules, contracts, or promises